Finding the Fourth Proportional to 577,876.80, 865,125.60 and 411,988.80
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Solution
The fourth proportional to 577,876.80, 865,125.60 and 411,988.80 is: 616,778.62
Step by Step Solution
- Step 1: Write the proportion equation
577,876.80 : 865,125.60 = 411,988.80 : x - Step 2: Convert to fraction form
577,876.80/865,125.60 = 411,988.80/x - Step 3: Cross multiply
577,876.80x = 865,125.60 × 411,988.80 - Step 4: Simplify right side
577,876.80x = 356,422,057,793.28 - Step 5: Solve for x
x = 356,422,057,793.28/577,876.80 - Step 6: Final answer
x = 616,778.62
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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.