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Finding the Fourth Proportional to 629,816, 869,167.04 and 375,132.56

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Solution

The fourth proportional to 629,816, 869,167.04 and 375,132.56 is: 517,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,816 : 869,167.04 = 375,132.56 : x
  2. Step 2: Convert to fraction form
    629,816/869,167.04 = 375,132.56/x
  3. Step 3: Cross multiply
    629,816x = 869,167.04 × 375,132.56
  4. Step 4: Simplify right side
    629,816x = 326,052,856,782.82
  5. Step 5: Solve for x
    x = 326,052,856,782.82/629,816
  6. Step 6: Final answer
    x = 517,695.42

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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.