Home / 1,107,212.80-1,656,882.60-768,665.20

Finding the Fourth Proportional to 1,107,212.80, 1,656,882.60 and 768,665.20

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Solution

The fourth proportional to 1,107,212.80, 1,656,882.60 and 768,665.20 is: 1,150,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,212.80 : 1,656,882.60 = 768,665.20 : x
  2. Step 2: Convert to fraction form
    1,107,212.80/1,656,882.60 = 768,665.20/x
  3. Step 3: Cross multiply
    1,107,212.80x = 1,656,882.60 × 768,665.20
  4. Step 4: Simplify right side
    1,107,212.80x = 1,273,587,995,105.52
  5. Step 5: Solve for x
    x = 1,273,587,995,105.52/1,107,212.80
  6. Step 6: Final answer
    x = 1,150,264.88

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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.