Home / 428,772.90-591,667.83-237,785.70

Finding the Fourth Proportional to 428,772.90, 591,667.83 and 237,785.70

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Solution

The fourth proportional to 428,772.90, 591,667.83 and 237,785.70 is: 328,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,772.90 : 591,667.83 = 237,785.70 : x
  2. Step 2: Convert to fraction form
    428,772.90/591,667.83 = 237,785.70/x
  3. Step 3: Cross multiply
    428,772.90x = 591,667.83 × 237,785.70
  4. Step 4: Simplify right side
    428,772.90x = 140,690,149,124.03
  5. Step 5: Solve for x
    x = 140,690,149,124.03/428,772.90
  6. Step 6: Final answer
    x = 328,122.76

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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.