Home / 2,720,400.30-4,080,600.45-827,138.70

Finding the Fourth Proportional to 2,720,400.30, 4,080,600.45 and 827,138.70

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Solution

The fourth proportional to 2,720,400.30, 4,080,600.45 and 827,138.70 is: 1,240,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720,400.30 : 4,080,600.45 = 827,138.70 : x
  2. Step 2: Convert to fraction form
    2,720,400.30/4,080,600.45 = 827,138.70/x
  3. Step 3: Cross multiply
    2,720,400.30x = 4,080,600.45 × 827,138.70
  4. Step 4: Simplify right side
    2,720,400.30x = 3,375,222,551,432.42
  5. Step 5: Solve for x
    x = 3,375,222,551,432.42/2,720,400.30
  6. Step 6: Final answer
    x = 1,240,708.05

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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.