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Finding the Fourth Proportional to 494.28, 737.33 and 412.20

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Solution

The fourth proportional to 494.28, 737.33 and 412.20 is: 614.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.28 : 737.33 = 412.20 : x
  2. Step 2: Convert to fraction form
    494.28/737.33 = 412.20/x
  3. Step 3: Cross multiply
    494.28x = 737.33 × 412.20
  4. Step 4: Simplify right side
    494.28x = 303,927.43
  5. Step 5: Solve for x
    x = 303,927.43/494.28
  6. Step 6: Final answer
    x = 614.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.