Home / 1,149.03-1,723.53-418.60

Finding the Fourth Proportional to 1,149.03, 1,723.53 and 418.60

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Solution

The fourth proportional to 1,149.03, 1,723.53 and 418.60 is: 627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.03 : 1,723.53 = 418.60 : x
  2. Step 2: Convert to fraction form
    1,149.03/1,723.53 = 418.60/x
  3. Step 3: Cross multiply
    1,149.03x = 1,723.53 × 418.60
  4. Step 4: Simplify right side
    1,149.03x = 721,469.66
  5. Step 5: Solve for x
    x = 721,469.66/1,149.03
  6. Step 6: Final answer
    x = 627.89

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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.