Finding the Fourth Proportional to 577,874.80, 865,122.60 and 411,986.80
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Solution
The fourth proportional to 577,874.80, 865,122.60 and 411,986.80 is: 616,775.63
Step by Step Solution
- Step 1: Write the proportion equation
577,874.80 : 865,122.60 = 411,986.80 : x - Step 2: Convert to fraction form
577,874.80/865,122.60 = 411,986.80/x - Step 3: Cross multiply
577,874.80x = 865,122.60 × 411,986.80 - Step 4: Simplify right side
577,874.80x = 356,419,091,581.68 - Step 5: Solve for x
x = 356,419,091,581.68/577,874.80 - Step 6: Final answer
x = 616,775.63
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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.