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Finding the Fourth Proportional to 624.96, 863.10 and 458.82

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Solution

The fourth proportional to 624.96, 863.10 and 458.82 is: 633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.96 : 863.10 = 458.82 : x
  2. Step 2: Convert to fraction form
    624.96/863.10 = 458.82/x
  3. Step 3: Cross multiply
    624.96x = 863.10 × 458.82
  4. Step 4: Simplify right side
    624.96x = 396,007.54
  5. Step 5: Solve for x
    x = 396,007.54/624.96
  6. Step 6: Final answer
    x = 633.65

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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.