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Finding the Fourth Proportional to 544.72, 818.72 and 449.16

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Solution

The fourth proportional to 544.72, 818.72 and 449.16 is: 675.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.72 : 818.72 = 449.16 : x
  2. Step 2: Convert to fraction form
    544.72/818.72 = 449.16/x
  3. Step 3: Cross multiply
    544.72x = 818.72 × 449.16
  4. Step 4: Simplify right side
    544.72x = 367,736.28
  5. Step 5: Solve for x
    x = 367,736.28/544.72
  6. Step 6: Final answer
    x = 675.09

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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.