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Finding the Fourth Proportional to 459.38, 687.62 and 452.24

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Solution

The fourth proportional to 459.38, 687.62 and 452.24 is: 676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.38 : 687.62 = 452.24 : x
  2. Step 2: Convert to fraction form
    459.38/687.62 = 452.24/x
  3. Step 3: Cross multiply
    459.38x = 687.62 × 452.24
  4. Step 4: Simplify right side
    459.38x = 310,969.27
  5. Step 5: Solve for x
    x = 310,969.27/459.38
  6. Step 6: Final answer
    x = 676.93

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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.