Home / 3,612,421.57-5,414,839.30-1,215,434.11

Finding the Fourth Proportional to 3,612,421.57, 5,414,839.30 and 1,215,434.11

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Solution

The fourth proportional to 3,612,421.57, 5,414,839.30 and 1,215,434.11 is: 1,821,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612,421.57 : 5,414,839.30 = 1,215,434.11 : x
  2. Step 2: Convert to fraction form
    3,612,421.57/5,414,839.30 = 1,215,434.11/x
  3. Step 3: Cross multiply
    3,612,421.57x = 5,414,839.30 × 1,215,434.11
  4. Step 4: Simplify right side
    3,612,421.57x = 6,581,380,385,388.52
  5. Step 5: Solve for x
    x = 6,581,380,385,388.52/3,612,421.57
  6. Step 6: Final answer
    x = 1,821,874.96

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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.