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Finding the Fourth Proportional to 1,229.82, 1,845.41 and 499.91

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Solution

The fourth proportional to 1,229.82, 1,845.41 and 499.91 is: 750.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.82 : 1,845.41 = 499.91 : x
  2. Step 2: Convert to fraction form
    1,229.82/1,845.41 = 499.91/x
  3. Step 3: Cross multiply
    1,229.82x = 1,845.41 × 499.91
  4. Step 4: Simplify right side
    1,229.82x = 922,538.91
  5. Step 5: Solve for x
    x = 922,538.91/1,229.82
  6. Step 6: Final answer
    x = 750.14

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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.