Home / 1,149,209.56-1,722,616.44-643,028.38

Finding the Fourth Proportional to 1,149,209.56, 1,722,616.44 and 643,028.38

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Solution

The fourth proportional to 1,149,209.56, 1,722,616.44 and 643,028.38 is: 963,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,209.56 : 1,722,616.44 = 643,028.38 : x
  2. Step 2: Convert to fraction form
    1,149,209.56/1,722,616.44 = 643,028.38/x
  3. Step 3: Cross multiply
    1,149,209.56x = 1,722,616.44 × 643,028.38
  4. Step 4: Simplify right side
    1,149,209.56x = 1,107,691,258,774.57
  5. Step 5: Solve for x
    x = 1,107,691,258,774.57/1,149,209.56
  6. Step 6: Final answer
    x = 963,872.30

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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.