Finding the Fourth Proportional to 861,878.18, 1,292,217.68 and 381,845.54
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Solution
The fourth proportional to 861,878.18, 1,292,217.68 and 381,845.54 is: 572,502.67
Step by Step Solution
- Step 1: Write the proportion equation
861,878.18 : 1,292,217.68 = 381,845.54 : x - Step 2: Convert to fraction form
861,878.18/1,292,217.68 = 381,845.54/x - Step 3: Cross multiply
861,878.18x = 1,292,217.68 × 381,845.54 - Step 4: Simplify right side
861,878.18x = 493,427,557,817.15 - Step 5: Solve for x
x = 493,427,557,817.15/861,878.18 - Step 6: Final answer
x = 572,502.67
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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.