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Finding the Fourth Proportional to 1,229.83, 1,844.07 and 488.69

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Solution

The fourth proportional to 1,229.83, 1,844.07 and 488.69 is: 732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.83 : 1,844.07 = 488.69 : x
  2. Step 2: Convert to fraction form
    1,229.83/1,844.07 = 488.69/x
  3. Step 3: Cross multiply
    1,229.83x = 1,844.07 × 488.69
  4. Step 4: Simplify right side
    1,229.83x = 901,176.12
  5. Step 5: Solve for x
    x = 901,176.12/1,229.83
  6. Step 6: Final answer
    x = 732.76

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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.