Home / 981,830.16-1,472,745.24-271,857.87

Finding the Fourth Proportional to 981,830.16, 1,472,745.24 and 271,857.87

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Solution

The fourth proportional to 981,830.16, 1,472,745.24 and 271,857.87 is: 407,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,830.16 : 1,472,745.24 = 271,857.87 : x
  2. Step 2: Convert to fraction form
    981,830.16/1,472,745.24 = 271,857.87/x
  3. Step 3: Cross multiply
    981,830.16x = 1,472,745.24 × 271,857.87
  4. Step 4: Simplify right side
    981,830.16x = 400,377,383,999.04
  5. Step 5: Solve for x
    x = 400,377,383,999.04/981,830.16
  6. Step 6: Final answer
    x = 407,786.81

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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.