Finding the Fourth Proportional to 621,540.97, 932,311.47 and 411,129.70
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Solution
The fourth proportional to 621,540.97, 932,311.47 and 411,129.70 is: 616,694.56
Step by Step Solution
- Step 1: Write the proportion equation
621,540.97 : 932,311.47 = 411,129.70 : x - Step 2: Convert to fraction form
621,540.97/932,311.47 = 411,129.70/x - Step 3: Cross multiply
621,540.97x = 932,311.47 × 411,129.70 - Step 4: Simplify right side
621,540.97x = 383,300,934,967.66 - Step 5: Solve for x
x = 383,300,934,967.66/621,540.97 - Step 6: Final answer
x = 616,694.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.