Finding the Fourth Proportional to 743,306.08, 1,025,733.36 and 421,034.08
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Solution
The fourth proportional to 743,306.08, 1,025,733.36 and 421,034.08 is: 581,010.59
Step by Step Solution
- Step 1: Write the proportion equation
743,306.08 : 1,025,733.36 = 421,034.08 : x - Step 2: Convert to fraction form
743,306.08/1,025,733.36 = 421,034.08/x - Step 3: Cross multiply
743,306.08x = 1,025,733.36 × 421,034.08 - Step 4: Simplify right side
743,306.08x = 431,868,701,552.91 - Step 5: Solve for x
x = 431,868,701,552.91/743,306.08 - Step 6: Final answer
x = 581,010.59
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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.