Finding the Fourth Proportional to 861,624.74, 1,291,838.60 and 381,590.96
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Solution
The fourth proportional to 861,624.74, 1,291,838.60 and 381,590.96 is: 572,121.37
Step by Step Solution
- Step 1: Write the proportion equation
861,624.74 : 1,291,838.60 = 381,590.96 : x - Step 2: Convert to fraction form
861,624.74/1,291,838.60 = 381,590.96/x - Step 3: Cross multiply
861,624.74x = 1,291,838.60 × 381,590.96 - Step 4: Simplify right side
861,624.74x = 492,953,923,171.91 - Step 5: Solve for x
x = 492,953,923,171.91/861,624.74 - Step 6: Final answer
x = 572,121.37
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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.