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Finding the Fourth Proportional to 1,332,367, 1,838,695.62 and 728,755

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Solution

The fourth proportional to 1,332,367, 1,838,695.62 and 728,755 is: 1,005,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,367 : 1,838,695.62 = 728,755 : x
  2. Step 2: Convert to fraction form
    1,332,367/1,838,695.62 = 728,755/x
  3. Step 3: Cross multiply
    1,332,367x = 1,838,695.62 × 728,755
  4. Step 4: Simplify right side
    1,332,367x = 1,339,958,626,553.10
  5. Step 5: Solve for x
    x = 1,339,958,626,553.10/1,332,367
  6. Step 6: Final answer
    x = 1,005,697.85

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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.