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Finding the Fourth Proportional to 418,025.10, 627,037.65 and 300,801.90

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Solution

The fourth proportional to 418,025.10, 627,037.65 and 300,801.90 is: 451,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,025.10 : 627,037.65 = 300,801.90 : x
  2. Step 2: Convert to fraction form
    418,025.10/627,037.65 = 300,801.90/x
  3. Step 3: Cross multiply
    418,025.10x = 627,037.65 × 300,801.90
  4. Step 4: Simplify right side
    418,025.10x = 188,614,116,491.54
  5. Step 5: Solve for x
    x = 188,614,116,491.54/418,025.10
  6. Step 6: Final answer
    x = 451,202.85

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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.