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Finding the Fourth Proportional to 517.26, 775.20 and 452.10

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Solution

The fourth proportional to 517.26, 775.20 and 452.10 is: 677.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.26 : 775.20 = 452.10 : x
  2. Step 2: Convert to fraction form
    517.26/775.20 = 452.10/x
  3. Step 3: Cross multiply
    517.26x = 775.20 × 452.10
  4. Step 4: Simplify right side
    517.26x = 350,467.92
  5. Step 5: Solve for x
    x = 350,467.92/517.26
  6. Step 6: Final answer
    x = 677.55

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1.5x scale

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.