Home / 1,288,306.10-1,778,081.20-744,757.01

Finding the Fourth Proportional to 1,288,306.10, 1,778,081.20 and 744,757.01

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Solution

The fourth proportional to 1,288,306.10, 1,778,081.20 and 744,757.01 is: 1,027,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,306.10 : 1,778,081.20 = 744,757.01 : x
  2. Step 2: Convert to fraction form
    1,288,306.10/1,778,081.20 = 744,757.01/x
  3. Step 3: Cross multiply
    1,288,306.10x = 1,778,081.20 × 744,757.01
  4. Step 4: Simplify right side
    1,288,306.10x = 1,324,238,438,770.63
  5. Step 5: Solve for x
    x = 1,324,238,438,770.63/1,288,306.10
  6. Step 6: Final answer
    x = 1,027,891.15

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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.