Home / 981,331.20-1,472,045.40-508,939.20

Finding the Fourth Proportional to 981,331.20, 1,472,045.40 and 508,939.20

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Solution

The fourth proportional to 981,331.20, 1,472,045.40 and 508,939.20 is: 763,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,331.20 : 1,472,045.40 = 508,939.20 : x
  2. Step 2: Convert to fraction form
    981,331.20/1,472,045.40 = 508,939.20/x
  3. Step 3: Cross multiply
    981,331.20x = 1,472,045.40 × 508,939.20
  4. Step 4: Simplify right side
    981,331.20x = 749,181,608,239.68
  5. Step 5: Solve for x
    x = 749,181,608,239.68/981,331.20
  6. Step 6: Final answer
    x = 763,434.00

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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.