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Finding the Fourth Proportional to 502.68, 693.28 and 481.64

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Solution

The fourth proportional to 502.68, 693.28 and 481.64 is: 664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.68 : 693.28 = 481.64 : x
  2. Step 2: Convert to fraction form
    502.68/693.28 = 481.64/x
  3. Step 3: Cross multiply
    502.68x = 693.28 × 481.64
  4. Step 4: Simplify right side
    502.68x = 333,911.38
  5. Step 5: Solve for x
    x = 333,911.38/502.68
  6. Step 6: Final answer
    x = 664.26

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Double scale
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1.5x scale

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.