Home / 428,374.20-591,159.82-237,390.76

Finding the Fourth Proportional to 428,374.20, 591,159.82 and 237,390.76

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Solution

The fourth proportional to 428,374.20, 591,159.82 and 237,390.76 is: 327,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,374.20 : 591,159.82 = 237,390.76 : x
  2. Step 2: Convert to fraction form
    428,374.20/591,159.82 = 237,390.76/x
  3. Step 3: Cross multiply
    428,374.20x = 591,159.82 × 237,390.76
  4. Step 4: Simplify right side
    428,374.20x = 140,335,878,951.26
  5. Step 5: Solve for x
    x = 140,335,878,951.26/428,374.20
  6. Step 6: Final answer
    x = 327,601.15

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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.