Home / 1,227,642.20-1,694,231.40-744,227.72

Finding the Fourth Proportional to 1,227,642.20, 1,694,231.40 and 744,227.72

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Solution

The fourth proportional to 1,227,642.20, 1,694,231.40 and 744,227.72 is: 1,027,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,642.20 : 1,694,231.40 = 744,227.72 : x
  2. Step 2: Convert to fraction form
    1,227,642.20/1,694,231.40 = 744,227.72/x
  3. Step 3: Cross multiply
    1,227,642.20x = 1,694,231.40 × 744,227.72
  4. Step 4: Simplify right side
    1,227,642.20x = 1,260,893,971,974.41
  5. Step 5: Solve for x
    x = 1,260,893,971,974.41/1,227,642.20
  6. Step 6: Final answer
    x = 1,027,085.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.