Home / 1,138,229.90-1,568,987.72-775,029.34

Finding the Fourth Proportional to 1,138,229.90, 1,568,987.72 and 775,029.34

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Solution

The fourth proportional to 1,138,229.90, 1,568,987.72 and 775,029.34 is: 1,068,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,229.90 : 1,568,987.72 = 775,029.34 : x
  2. Step 2: Convert to fraction form
    1,138,229.90/1,568,987.72 = 775,029.34/x
  3. Step 3: Cross multiply
    1,138,229.90x = 1,568,987.72 × 775,029.34
  4. Step 4: Simplify right side
    1,138,229.90x = 1,216,011,517,099.70
  5. Step 5: Solve for x
    x = 1,216,011,517,099.70/1,138,229.90
  6. Step 6: Final answer
    x = 1,068,335.59

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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.