Home / 2,079,996.80-3,113,774.40-1,238,115.20

Finding the Fourth Proportional to 2,079,996.80, 3,113,774.40 and 1,238,115.20

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Solution

The fourth proportional to 2,079,996.80, 3,113,774.40 and 1,238,115.20 is: 1,853,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,996.80 : 3,113,774.40 = 1,238,115.20 : x
  2. Step 2: Convert to fraction form
    2,079,996.80/3,113,774.40 = 1,238,115.20/x
  3. Step 3: Cross multiply
    2,079,996.80x = 3,113,774.40 × 1,238,115.20
  4. Step 4: Simplify right side
    2,079,996.80x = 3,855,211,414,010.88
  5. Step 5: Solve for x
    x = 3,855,211,414,010.88/2,079,996.80
  6. Step 6: Final answer
    x = 1,853,469.88

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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.