Finding the Fourth Proportional to 721,337.76, 995,438.62 and 394,647.68
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Solution
The fourth proportional to 721,337.76, 995,438.62 and 394,647.68 is: 544,609.70
Step by Step Solution
- Step 1: Write the proportion equation
721,337.76 : 995,438.62 = 394,647.68 : x - Step 2: Convert to fraction form
721,337.76/995,438.62 = 394,647.68/x - Step 3: Cross multiply
721,337.76x = 995,438.62 × 394,647.68 - Step 4: Simplify right side
721,337.76x = 392,847,539,992.16 - Step 5: Solve for x
x = 392,847,539,992.16/721,337.76 - Step 6: Final answer
x = 544,609.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.