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Finding the Fourth Proportional to 519.43, 717.51 and 482.53

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Solution

The fourth proportional to 519.43, 717.51 and 482.53 is: 666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.43 : 717.51 = 482.53 : x
  2. Step 2: Convert to fraction form
    519.43/717.51 = 482.53/x
  3. Step 3: Cross multiply
    519.43x = 717.51 × 482.53
  4. Step 4: Simplify right side
    519.43x = 346,220.12
  5. Step 5: Solve for x
    x = 346,220.12/519.43
  6. Step 6: Final answer
    x = 666.54

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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.