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Finding the Fourth Proportional to 499.17, 689.52 and 452.59

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Solution

The fourth proportional to 499.17, 689.52 and 452.59 is: 625.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.17 : 689.52 = 452.59 : x
  2. Step 2: Convert to fraction form
    499.17/689.52 = 452.59/x
  3. Step 3: Cross multiply
    499.17x = 689.52 × 452.59
  4. Step 4: Simplify right side
    499.17x = 312,069.86
  5. Step 5: Solve for x
    x = 312,069.86/499.17
  6. Step 6: Final answer
    x = 625.18

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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.