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Finding the Fourth Proportional to 629,940.15, 944,241.84 and 309,640.32

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Solution

The fourth proportional to 629,940.15, 944,241.84 and 309,640.32 is: 464,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,940.15 : 944,241.84 = 309,640.32 : x
  2. Step 2: Convert to fraction form
    629,940.15/944,241.84 = 309,640.32/x
  3. Step 3: Cross multiply
    629,940.15x = 944,241.84 × 309,640.32
  4. Step 4: Simplify right side
    629,940.15x = 292,375,345,494.99
  5. Step 5: Solve for x
    x = 292,375,345,494.99/629,940.15
  6. Step 6: Final answer
    x = 464,131.94

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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.