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Finding the Fourth Proportional to 428,592.60, 591,464.97 and 234,996.30

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Solution

The fourth proportional to 428,592.60, 591,464.97 and 234,996.30 is: 324,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,592.60 : 591,464.97 = 234,996.30 : x
  2. Step 2: Convert to fraction form
    428,592.60/591,464.97 = 234,996.30/x
  3. Step 3: Cross multiply
    428,592.60x = 591,464.97 × 234,996.30
  4. Step 4: Simplify right side
    428,592.60x = 138,992,079,529.61
  5. Step 5: Solve for x
    x = 138,992,079,529.61/428,592.60
  6. Step 6: Final answer
    x = 324,298.83

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1.5x scale

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.