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Finding the Fourth Proportional to 425,049.64, 636,745.02 and 331,115.56

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Solution

The fourth proportional to 425,049.64, 636,745.02 and 331,115.56 is: 496,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,049.64 : 636,745.02 = 331,115.56 : x
  2. Step 2: Convert to fraction form
    425,049.64/636,745.02 = 331,115.56/x
  3. Step 3: Cross multiply
    425,049.64x = 636,745.02 × 331,115.56
  4. Step 4: Simplify right side
    425,049.64x = 210,836,183,874.51
  5. Step 5: Solve for x
    x = 210,836,183,874.51/425,049.64
  6. Step 6: Final answer
    x = 496,027.20

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1.5x scale

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.