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Finding the Fourth Proportional to 517.22, 771.99 and 452.60

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Solution

The fourth proportional to 517.22, 771.99 and 452.60 is: 675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.22 : 771.99 = 452.60 : x
  2. Step 2: Convert to fraction form
    517.22/771.99 = 452.60/x
  3. Step 3: Cross multiply
    517.22x = 771.99 × 452.60
  4. Step 4: Simplify right side
    517.22x = 349,398.81
  5. Step 5: Solve for x
    x = 349,398.81/517.22
  6. Step 6: Final answer
    x = 675.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.