Home / 981,729.76-1,472,430.60-271,829.56

Finding the Fourth Proportional to 981,729.76, 1,472,430.60 and 271,829.56

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Solution

The fourth proportional to 981,729.76, 1,472,430.60 and 271,829.56 is: 407,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,729.76 : 1,472,430.60 = 271,829.56 : x
  2. Step 2: Convert to fraction form
    981,729.76/1,472,430.60 = 271,829.56/x
  3. Step 3: Cross multiply
    981,729.76x = 1,472,430.60 × 271,829.56
  4. Step 4: Simplify right side
    981,729.76x = 400,250,162,128.54
  5. Step 5: Solve for x
    x = 400,250,162,128.54/981,729.76
  6. Step 6: Final answer
    x = 407,698.92

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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.