Finding the Fourth Proportional to 686,256.57, 1,029,679.70 and 331,535.97
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Solution
The fourth proportional to 686,256.57, 1,029,679.70 and 331,535.97 is: 497,446.39
Step by Step Solution
- Step 1: Write the proportion equation
686,256.57 : 1,029,679.70 = 331,535.97 : x - Step 2: Convert to fraction form
686,256.57/1,029,679.70 = 331,535.97/x - Step 3: Cross multiply
686,256.57x = 1,029,679.70 × 331,535.97 - Step 4: Simplify right side
686,256.57x = 341,375,856,471.13 - Step 5: Solve for x
x = 341,375,856,471.13/686,256.57 - Step 6: Final answer
x = 497,446.39
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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.