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Finding the Fourth Proportional to 627,872.20, 866,453.34 and 341,399.50

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Solution

The fourth proportional to 627,872.20, 866,453.34 and 341,399.50 is: 471,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,872.20 : 866,453.34 = 341,399.50 : x
  2. Step 2: Convert to fraction form
    627,872.20/866,453.34 = 341,399.50/x
  3. Step 3: Cross multiply
    627,872.20x = 866,453.34 × 341,399.50
  4. Step 4: Simplify right side
    627,872.20x = 295,806,737,049.33
  5. Step 5: Solve for x
    x = 295,806,737,049.33/627,872.20
  6. Step 6: Final answer
    x = 471,125.71

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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.