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Finding the Fourth Proportional to 629,772.60, 944,002.80 and 345,025.20

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Solution

The fourth proportional to 629,772.60, 944,002.80 and 345,025.20 is: 517,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,772.60 : 944,002.80 = 345,025.20 : x
  2. Step 2: Convert to fraction form
    629,772.60/944,002.80 = 345,025.20/x
  3. Step 3: Cross multiply
    629,772.60x = 944,002.80 × 345,025.20
  4. Step 4: Simplify right side
    629,772.60x = 325,704,754,870.56
  5. Step 5: Solve for x
    x = 325,704,754,870.56/629,772.60
  6. Step 6: Final answer
    x = 517,178.35

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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.