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Finding the Fourth Proportional to 629,959.60, 944,693.70 and 274,731.40

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Solution

The fourth proportional to 629,959.60, 944,693.70 and 274,731.40 is: 411,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,959.60 : 944,693.70 = 274,731.40 : x
  2. Step 2: Convert to fraction form
    629,959.60/944,693.70 = 274,731.40/x
  3. Step 3: Cross multiply
    629,959.60x = 944,693.70 × 274,731.40
  4. Step 4: Simplify right side
    629,959.60x = 259,537,022,772.18
  5. Step 5: Solve for x
    x = 259,537,022,772.18/629,959.60
  6. Step 6: Final answer
    x = 411,989.95

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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.