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Finding the Fourth Proportional to 662.66, 913.05 and 544.23

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Solution

The fourth proportional to 662.66, 913.05 and 544.23 is: 749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.66 : 913.05 = 544.23 : x
  2. Step 2: Convert to fraction form
    662.66/913.05 = 544.23/x
  3. Step 3: Cross multiply
    662.66x = 913.05 × 544.23
  4. Step 4: Simplify right side
    662.66x = 496,909.20
  5. Step 5: Solve for x
    x = 496,909.20/662.66
  6. Step 6: Final answer
    x = 749.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.