Finding the Fourth Proportional to 687,295.38, 948,472.68 and 381,372.96
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Solution
The fourth proportional to 687,295.38, 948,472.68 and 381,372.96 is: 526,297.49
Step by Step Solution
- Step 1: Write the proportion equation
687,295.38 : 948,472.68 = 381,372.96 : x - Step 2: Convert to fraction form
687,295.38/948,472.68 = 381,372.96/x - Step 3: Cross multiply
687,295.38x = 948,472.68 × 381,372.96 - Step 4: Simplify right side
687,295.38x = 361,721,833,450.73 - Step 5: Solve for x
x = 361,721,833,450.73/687,295.38 - Step 6: Final answer
x = 526,297.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.