Finding the Fourth Proportional to 391,805.97, 587,608.98 and 121,881.32
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Solution
The fourth proportional to 391,805.97, 587,608.98 and 121,881.32 is: 182,790.88
Step by Step Solution
- Step 1: Write the proportion equation
391,805.97 : 587,608.98 = 121,881.32 : x - Step 2: Convert to fraction form
391,805.97/587,608.98 = 121,881.32/x - Step 3: Cross multiply
391,805.97x = 587,608.98 × 121,881.32 - Step 4: Simplify right side
391,805.97x = 71,618,558,126.25 - Step 5: Solve for x
x = 71,618,558,126.25/391,805.97 - Step 6: Final answer
x = 182,790.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.