Home / 981,391.70-1,472,136.15-508,999.70

Finding the Fourth Proportional to 981,391.70, 1,472,136.15 and 508,999.70

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Solution

The fourth proportional to 981,391.70, 1,472,136.15 and 508,999.70 is: 763,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,391.70 : 1,472,136.15 = 508,999.70 : x
  2. Step 2: Convert to fraction form
    981,391.70/1,472,136.15 = 508,999.70/x
  3. Step 3: Cross multiply
    981,391.70x = 1,472,136.15 × 508,999.70
  4. Step 4: Simplify right side
    981,391.70x = 749,316,858,709.16
  5. Step 5: Solve for x
    x = 749,316,858,709.16/981,391.70
  6. Step 6: Final answer
    x = 763,524.76

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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.