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Finding the Fourth Proportional to 447,470.56, 617,737.89 and 345,266.38

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Solution

The fourth proportional to 447,470.56, 617,737.89 and 345,266.38 is: 476,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,470.56 : 617,737.89 = 345,266.38 : x
  2. Step 2: Convert to fraction form
    447,470.56/617,737.89 = 345,266.38/x
  3. Step 3: Cross multiply
    447,470.56x = 617,737.89 × 345,266.38
  4. Step 4: Simplify right side
    447,470.56x = 213,284,125,069.14
  5. Step 5: Solve for x
    x = 213,284,125,069.14/447,470.56
  6. Step 6: Final answer
    x = 476,643.93

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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.