Finding the Fourth Proportional to 686,991.15, 948,029.49 and 396,592.92
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Solution
The fourth proportional to 686,991.15, 948,029.49 and 396,592.92 is: 547,287.66
Step by Step Solution
- Step 1: Write the proportion equation
686,991.15 : 948,029.49 = 396,592.92 : x - Step 2: Convert to fraction form
686,991.15/948,029.49 = 396,592.92/x - Step 3: Cross multiply
686,991.15x = 948,029.49 × 396,592.92 - Step 4: Simplify right side
686,991.15x = 375,981,778,945.06 - Step 5: Solve for x
x = 375,981,778,945.06/686,991.15 - Step 6: Final answer
x = 547,287.66
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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.