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Finding the Fourth Proportional to 428,704.70, 591,583.65 and 237,711.02

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Solution

The fourth proportional to 428,704.70, 591,583.65 and 237,711.02 is: 328,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,704.70 : 591,583.65 = 237,711.02 : x
  2. Step 2: Convert to fraction form
    428,704.70/591,583.65 = 237,711.02/x
  3. Step 3: Cross multiply
    428,704.70x = 591,583.65 × 237,711.02
  4. Step 4: Simplify right side
    428,704.70x = 140,625,952,856.82
  5. Step 5: Solve for x
    x = 140,625,952,856.82/428,704.70
  6. Step 6: Final answer
    x = 328,025.22

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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.