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Finding the Fourth Proportional to 496.28, 683.28 and 462.20

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Solution

The fourth proportional to 496.28, 683.28 and 462.20 is: 636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.28 : 683.28 = 462.20 : x
  2. Step 2: Convert to fraction form
    496.28/683.28 = 462.20/x
  3. Step 3: Cross multiply
    496.28x = 683.28 × 462.20
  4. Step 4: Simplify right side
    496.28x = 315,812.02
  5. Step 5: Solve for x
    x = 315,812.02/496.28
  6. Step 6: Final answer
    x = 636.36

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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.