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Finding the Fourth Proportional to 617,589.43, 852,079.21 and 345,614.11

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Solution

The fourth proportional to 617,589.43, 852,079.21 and 345,614.11 is: 476,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,589.43 : 852,079.21 = 345,614.11 : x
  2. Step 2: Convert to fraction form
    617,589.43/852,079.21 = 345,614.11/x
  3. Step 3: Cross multiply
    617,589.43x = 852,079.21 × 345,614.11
  4. Step 4: Simplify right side
    617,589.43x = 294,490,600,375.87
  5. Step 5: Solve for x
    x = 294,490,600,375.87/617,589.43
  6. Step 6: Final answer
    x = 476,838.79

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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.