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Finding the Fourth Proportional to 425,060.64, 636,761.52 and 331,126.56

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Solution

The fourth proportional to 425,060.64, 636,761.52 and 331,126.56 is: 496,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,060.64 : 636,761.52 = 331,126.56 : x
  2. Step 2: Convert to fraction form
    425,060.64/636,761.52 = 331,126.56/x
  3. Step 3: Cross multiply
    425,060.64x = 636,761.52 × 331,126.56
  4. Step 4: Simplify right side
    425,060.64x = 210,848,651,657.97
  5. Step 5: Solve for x
    x = 210,848,651,657.97/425,060.64
  6. Step 6: Final answer
    x = 496,043.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.