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Finding the Fourth Proportional to 1,227.03, 1,840.55 and 496.61

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Solution

The fourth proportional to 1,227.03, 1,840.55 and 496.61 is: 744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.03 : 1,840.55 = 496.61 : x
  2. Step 2: Convert to fraction form
    1,227.03/1,840.55 = 496.61/x
  3. Step 3: Cross multiply
    1,227.03x = 1,840.55 × 496.61
  4. Step 4: Simplify right side
    1,227.03x = 914,023.85
  5. Step 5: Solve for x
    x = 914,023.85/1,227.03
  6. Step 6: Final answer
    x = 744.91

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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.