Home / 787,354.23-1,179,255.71-365,742.87

Finding the Fourth Proportional to 787,354.23, 1,179,255.71 and 365,742.87

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Solution

The fourth proportional to 787,354.23, 1,179,255.71 and 365,742.87 is: 547,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,354.23 : 1,179,255.71 = 365,742.87 : x
  2. Step 2: Convert to fraction form
    787,354.23/1,179,255.71 = 365,742.87/x
  3. Step 3: Cross multiply
    787,354.23x = 1,179,255.71 × 365,742.87
  4. Step 4: Simplify right side
    787,354.23x = 431,304,366,010.57
  5. Step 5: Solve for x
    x = 431,304,366,010.57/787,354.23
  6. Step 6: Final answer
    x = 547,789.48

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1.5x scale

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.