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Finding the Fourth Proportional to 458.20, 636.59 and 452.74

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Solution

The fourth proportional to 458.20, 636.59 and 452.74 is: 629.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.20 : 636.59 = 452.74 : x
  2. Step 2: Convert to fraction form
    458.20/636.59 = 452.74/x
  3. Step 3: Cross multiply
    458.20x = 636.59 × 452.74
  4. Step 4: Simplify right side
    458.20x = 288,209.76
  5. Step 5: Solve for x
    x = 288,209.76/458.20
  6. Step 6: Final answer
    x = 629.00

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.