Home / 2,182,149.62-3,011,459.87-1,215,279.90

Finding the Fourth Proportional to 2,182,149.62, 3,011,459.87 and 1,215,279.90

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Solution

The fourth proportional to 2,182,149.62, 3,011,459.87 and 1,215,279.90 is: 1,677,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182,149.62 : 3,011,459.87 = 1,215,279.90 : x
  2. Step 2: Convert to fraction form
    2,182,149.62/3,011,459.87 = 1,215,279.90/x
  3. Step 3: Cross multiply
    2,182,149.62x = 3,011,459.87 × 1,215,279.90
  4. Step 4: Simplify right side
    2,182,149.62x = 3,659,766,643,591.21
  5. Step 5: Solve for x
    x = 3,659,766,643,591.21/2,182,149.62
  6. Step 6: Final answer
    x = 1,677,138.28

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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.