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Finding the Fourth Proportional to 629,046.78, 868,068.63 and 360,757.50

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Solution

The fourth proportional to 629,046.78, 868,068.63 and 360,757.50 is: 497,836.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,046.78 : 868,068.63 = 360,757.50 : x
  2. Step 2: Convert to fraction form
    629,046.78/868,068.63 = 360,757.50/x
  3. Step 3: Cross multiply
    629,046.78x = 868,068.63 × 360,757.50
  4. Step 4: Simplify right side
    629,046.78x = 313,162,268,787.23
  5. Step 5: Solve for x
    x = 313,162,268,787.23/629,046.78
  6. Step 6: Final answer
    x = 497,836.22

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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.