Home / 428,781.92-591,680.24-237,794.72

Finding the Fourth Proportional to 428,781.92, 591,680.24 and 237,794.72

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Solution

The fourth proportional to 428,781.92, 591,680.24 and 237,794.72 is: 328,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,781.92 : 591,680.24 = 237,794.72 : x
  2. Step 2: Convert to fraction form
    428,781.92/591,680.24 = 237,794.72/x
  3. Step 3: Cross multiply
    428,781.92x = 591,680.24 × 237,794.72
  4. Step 4: Simplify right side
    428,781.92x = 140,698,437,000.33
  5. Step 5: Solve for x
    x = 140,698,437,000.33/428,781.92
  6. Step 6: Final answer
    x = 328,135.19

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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.