Finding the Fourth Proportional to 679,354.99, 936,645.19 and 424,613.23
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Solution
The fourth proportional to 679,354.99, 936,645.19 and 424,613.23 is: 585,425.80
Step by Step Solution
- Step 1: Write the proportion equation
679,354.99 : 936,645.19 = 424,613.23 : x - Step 2: Convert to fraction form
679,354.99/936,645.19 = 424,613.23/x - Step 3: Cross multiply
679,354.99x = 936,645.19 × 424,613.23 - Step 4: Simplify right side
679,354.99x = 397,711,939,489.86 - Step 5: Solve for x
x = 397,711,939,489.86/679,354.99 - Step 6: Final answer
x = 585,425.80
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1.5x scale
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.