Home / 1,327,108.20-1,990,663.65-329,836.20

Finding the Fourth Proportional to 1,327,108.20, 1,990,663.65 and 329,836.20

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Solution

The fourth proportional to 1,327,108.20, 1,990,663.65 and 329,836.20 is: 494,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,108.20 : 1,990,663.65 = 329,836.20 : x
  2. Step 2: Convert to fraction form
    1,327,108.20/1,990,663.65 = 329,836.20/x
  3. Step 3: Cross multiply
    1,327,108.20x = 1,990,663.65 × 329,836.20
  4. Step 4: Simplify right side
    1,327,108.20x = 656,592,933,794.13
  5. Step 5: Solve for x
    x = 656,592,933,794.13/1,327,108.20
  6. Step 6: Final answer
    x = 494,754.64

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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.