Home / 981,731.76-1,472,433.60-271,831.56

Finding the Fourth Proportional to 981,731.76, 1,472,433.60 and 271,831.56

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Solution

The fourth proportional to 981,731.76, 1,472,433.60 and 271,831.56 is: 407,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,731.76 : 1,472,433.60 = 271,831.56 : x
  2. Step 2: Convert to fraction form
    981,731.76/1,472,433.60 = 271,831.56/x
  3. Step 3: Cross multiply
    981,731.76x = 1,472,433.60 × 271,831.56
  4. Step 4: Simplify right side
    981,731.76x = 400,253,922,484.42
  5. Step 5: Solve for x
    x = 400,253,922,484.42/981,731.76
  6. Step 6: Final answer
    x = 407,701.92

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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.