Home / 428,778.95-591,686.12-237,785.27

Finding the Fourth Proportional to 428,778.95, 591,686.12 and 237,785.27

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Solution

The fourth proportional to 428,778.95, 591,686.12 and 237,785.27 is: 328,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,778.95 : 591,686.12 = 237,785.27 : x
  2. Step 2: Convert to fraction form
    428,778.95/591,686.12 = 237,785.27/x
  3. Step 3: Cross multiply
    428,778.95x = 591,686.12 × 237,785.27
  4. Step 4: Simplify right side
    428,778.95x = 140,694,242,610.53
  5. Step 5: Solve for x
    x = 140,694,242,610.53/428,778.95
  6. Step 6: Final answer
    x = 328,127.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.