Home / 2,612,600.20-3,919,046.22-815,731.72

Finding the Fourth Proportional to 2,612,600.20, 3,919,046.22 and 815,731.72

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Solution

The fourth proportional to 2,612,600.20, 3,919,046.22 and 815,731.72 is: 1,223,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,600.20 : 3,919,046.22 = 815,731.72 : x
  2. Step 2: Convert to fraction form
    2,612,600.20/3,919,046.22 = 815,731.72/x
  3. Step 3: Cross multiply
    2,612,600.20x = 3,919,046.22 × 815,731.72
  4. Step 4: Simplify right side
    2,612,600.20x = 3,196,890,313,800.10
  5. Step 5: Solve for x
    x = 3,196,890,313,800.10/2,612,600.20
  6. Step 6: Final answer
    x = 1,223,643.14

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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.