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Finding the Fourth Proportional to 523.08, 717.05 and 518.24

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Solution

The fourth proportional to 523.08, 717.05 and 518.24 is: 710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.08 : 717.05 = 518.24 : x
  2. Step 2: Convert to fraction form
    523.08/717.05 = 518.24/x
  3. Step 3: Cross multiply
    523.08x = 717.05 × 518.24
  4. Step 4: Simplify right side
    523.08x = 371,603.99
  5. Step 5: Solve for x
    x = 371,603.99/523.08
  6. Step 6: Final answer
    x = 710.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.