Home / 2,080,620.40-3,121,708.20-819,327.28

Finding the Fourth Proportional to 2,080,620.40, 3,121,708.20 and 819,327.28

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Solution

The fourth proportional to 2,080,620.40, 3,121,708.20 and 819,327.28 is: 1,229,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,620.40 : 3,121,708.20 = 819,327.28 : x
  2. Step 2: Convert to fraction form
    2,080,620.40/3,121,708.20 = 819,327.28/x
  3. Step 3: Cross multiply
    2,080,620.40x = 3,121,708.20 × 819,327.28
  4. Step 4: Simplify right side
    2,080,620.40x = 2,557,700,688,459.70
  5. Step 5: Solve for x
    x = 2,557,700,688,459.70/2,080,620.40
  6. Step 6: Final answer
    x = 1,229,297.13

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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.