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Finding the Fourth Proportional to 629,940.60, 944,242.44 and 309,640.74

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Solution

The fourth proportional to 629,940.60, 944,242.44 and 309,640.74 is: 464,132.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,940.60 : 944,242.44 = 309,640.74 : x
  2. Step 2: Convert to fraction form
    629,940.60/944,242.44 = 309,640.74/x
  3. Step 3: Cross multiply
    629,940.60x = 944,242.44 × 309,640.74
  4. Step 4: Simplify right side
    629,940.60x = 292,375,927,861.01
  5. Step 5: Solve for x
    x = 292,375,927,861.01/629,940.60
  6. Step 6: Final answer
    x = 464,132.54

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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.