Finding the Fourth Proportional to 625,121.69, 862,668.33 and 338,642.91
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Solution
The fourth proportional to 625,121.69, 862,668.33 and 338,642.91 is: 467,327.43
Step by Step Solution
- Step 1: Write the proportion equation
625,121.69 : 862,668.33 = 338,642.91 : x - Step 2: Convert to fraction form
625,121.69/862,668.33 = 338,642.91/x - Step 3: Cross multiply
625,121.69x = 862,668.33 × 338,642.91 - Step 4: Simplify right side
625,121.69x = 292,136,512,366.13 - Step 5: Solve for x
x = 292,136,512,366.13/625,121.69 - Step 6: Final answer
x = 467,327.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.