 | Perry Fairfax Nursey - 1826 - 476 sider
...Rule vi. ought to have stood thus : — " A proportion tnây be converted into an equation by making the product of the extremes equal to the product of the means." This rule is moreover unintelligible to the learner, as the terms extremes and means have never been... | |
 | 1826 - 478 sider
...70, Rule vi. ought to have stood thus : — "A proportion may be converted into an equation by making the product of the extremes equal to the product of the means." This rule is moreover unintelligible to the learner, as the terms extremes and means have never been... | |
 | 1826 - 490 sider
...70, Rule vi. ought to have stood thus: — "A proportion may be converted into an equation by making the product of the extremes equal to the product of the means." This rule is moreover unintelligible to the learner, as the terms extremes and means have never been... | |
 | James Ryan - 1827 - 290 sider
...do you find the fourth ? What two terms of an analogy are called the extremes! what the means ? Is the product of the extremes equal to the product- of the means ? CHAPTER V. FRACTIONS. On the JVatttre of Fractions. c..i. If we divide any one whole thing, a foot,... | |
 | Ira Wanzer - 1831 - 408 sider
...called? 7. What are the first and last terms of an analogy called? and what the other two terms? 8- Is the product of the extremes equal to the product of the means? 9. How may either of the extremes be found when the other extreme and the two mean terms are given?... | |
 | 1836 - 488 sider
...What is inverse or reciprocal proportion ? When is the sum of the extremes double the mean ? When is the product of the extremes equal to the product of the means? How is a mean proportional between two quantities found ? What six changes can be made in a proportion... | |
 | Horatio Nelson Robinson - 1846 - 276 sider
...either A, or r, or C. Hence, to convert a proportion into an equation, we have the following RULE. Place the product of the extremes equal to the product of the means. (Art. 42.) The relation between two quantities is not changed by multiplying or dividing both of them... | |
 | Horatio Nelson Robinson - 1848 - 354 sider
...either A, or r, or C. Hence, to convert a proportion into an equation, we have the following RULE. Place the product of the extremes equal to the product of the means. (Art. 42.) The relation between two quantities is not changed by multiplying or dividing both of them... | |
 | 1851 - 260 sider
...action, must be effect. EXAMPLES. oats, how many bushels will 5 horses consume in 90 days? (W. 113.) Ans. 72. Here it is evident, that the consumption of oats...this example, the product of the means is perfect j which product, divided by the factors in the extremes, will give what is wanting in the extremes,... | |
 | 1853 - 266 sider
...action, must be effect. EXAMPLES. oats, how many bushels will 5 horses consume in 90 days? (W. 113.) Ans. 72. Here it is evident, that the consumption of oats...extremes, will give what is wanting in the extremes, namly — the answer. Therefore, agreeably to one mode of performing multiplication and division, we... | |
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For, if we have given ab' = a'b, then, dividing by bb', we obtain Corollary. The terms of a proportion may be written In any order which will make the product of the extremes equal to the product of the means. 
