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Finding the Fourth Proportional to 425,088.57, 636,933.02 and 297,017.85

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Solution

The fourth proportional to 425,088.57, 636,933.02 and 297,017.85 is: 445,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,088.57 : 636,933.02 = 297,017.85 : x
  2. Step 2: Convert to fraction form
    425,088.57/636,933.02 = 297,017.85/x
  3. Step 3: Cross multiply
    425,088.57x = 636,933.02 × 297,017.85
  4. Step 4: Simplify right side
    425,088.57x = 189,180,474,709.32
  5. Step 5: Solve for x
    x = 189,180,474,709.32/425,088.57
  6. Step 6: Final answer
    x = 445,037.78

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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.