Home / 981,876-1,472,831.92-307,942.24

Finding the Fourth Proportional to 981,876, 1,472,831.92 and 307,942.24

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Solution

The fourth proportional to 981,876, 1,472,831.92 and 307,942.24 is: 461,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,876 : 1,472,831.92 = 307,942.24 : x
  2. Step 2: Convert to fraction form
    981,876/1,472,831.92 = 307,942.24/x
  3. Step 3: Cross multiply
    981,876x = 1,472,831.92 × 307,942.24
  4. Step 4: Simplify right side
    981,876x = 453,547,160,588.30
  5. Step 5: Solve for x
    x = 453,547,160,588.30/981,876
  6. Step 6: Final answer
    x = 461,918.98

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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.