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Finding the Third Proportional to 494.44 and 740.81

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Solution

The third proportional to 494.44 and 740.81 is: 1,109.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.44 : 740.81 = 740.81 : x
  2. Step 2: Convert to fraction form
    494.44/740.81 = 740.81/x
  3. Step 3: Cross multiply
    494.44x = 740.81 × 740.81
  4. Step 4: Simplify right side
    494.44x = 548,803.16
  5. Step 5: Solve for x
    x = 548,803.16/494.44
  6. Step 6: Final answer
    x = 1,109.95

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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.