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Finding the Fourth Proportional to 1,149.93, 1,723.97 and 500.20

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Solution

The fourth proportional to 1,149.93, 1,723.97 and 500.20 is: 749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.93 : 1,723.97 = 500.20 : x
  2. Step 2: Convert to fraction form
    1,149.93/1,723.97 = 500.20/x
  3. Step 3: Cross multiply
    1,149.93x = 1,723.97 × 500.20
  4. Step 4: Simplify right side
    1,149.93x = 862,326.73
  5. Step 5: Solve for x
    x = 862,326.73/1,149.93
  6. Step 6: Final answer
    x = 749.89

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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.