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Finding the Fourth Proportional to 667,007.27, 920,469.84 and 361,083.43

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Solution

The fourth proportional to 667,007.27, 920,469.84 and 361,083.43 is: 498,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,007.27 : 920,469.84 = 361,083.43 : x
  2. Step 2: Convert to fraction form
    667,007.27/920,469.84 = 361,083.43/x
  3. Step 3: Cross multiply
    667,007.27x = 920,469.84 × 361,083.43
  4. Step 4: Simplify right side
    667,007.27x = 332,366,402,436.40
  5. Step 5: Solve for x
    x = 332,366,402,436.40/667,007.27
  6. Step 6: Final answer
    x = 498,295.02

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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.