Home / 981,723.70-1,472,585.55-509,331.70

Finding the Fourth Proportional to 981,723.70, 1,472,585.55 and 509,331.70

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Solution

The fourth proportional to 981,723.70, 1,472,585.55 and 509,331.70 is: 763,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,723.70 : 1,472,585.55 = 509,331.70 : x
  2. Step 2: Convert to fraction form
    981,723.70/1,472,585.55 = 509,331.70/x
  3. Step 3: Cross multiply
    981,723.70x = 1,472,585.55 × 509,331.70
  4. Step 4: Simplify right side
    981,723.70x = 750,034,501,576.94
  5. Step 5: Solve for x
    x = 750,034,501,576.94/981,723.70
  6. Step 6: Final answer
    x = 763,997.55

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Similar ratio
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1.5x scale

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.