Home / 2,140,387.20-3,211,073.28-720,405.36

Finding the Fourth Proportional to 2,140,387.20, 3,211,073.28 and 720,405.36

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Solution

The fourth proportional to 2,140,387.20, 3,211,073.28 and 720,405.36 is: 1,080,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,387.20 : 3,211,073.28 = 720,405.36 : x
  2. Step 2: Convert to fraction form
    2,140,387.20/3,211,073.28 = 720,405.36/x
  3. Step 3: Cross multiply
    2,140,387.20x = 3,211,073.28 × 720,405.36
  4. Step 4: Simplify right side
    2,140,387.20x = 2,313,274,402,264.78
  5. Step 5: Solve for x
    x = 2,313,274,402,264.78/2,140,387.20
  6. Step 6: Final answer
    x = 1,080,773.80

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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.