Finding the Fourth Proportional to 517,747.80, 775,892.70 and 411,313.80
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Solution
The fourth proportional to 517,747.80, 775,892.70 and 411,313.80 is: 616,391.56
Step by Step Solution
- Step 1: Write the proportion equation
517,747.80 : 775,892.70 = 411,313.80 : x - Step 2: Convert to fraction form
517,747.80/775,892.70 = 411,313.80/x - Step 3: Cross multiply
517,747.80x = 775,892.70 × 411,313.80 - Step 4: Simplify right side
517,747.80x = 319,135,374,829.26 - Step 5: Solve for x
x = 319,135,374,829.26/517,747.80 - Step 6: Final answer
x = 616,391.56
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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.