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Finding the Fourth Proportional to 547.08, 754.74 and 517.92

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Solution

The fourth proportional to 547.08, 754.74 and 517.92 is: 714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.08 : 754.74 = 517.92 : x
  2. Step 2: Convert to fraction form
    547.08/754.74 = 517.92/x
  3. Step 3: Cross multiply
    547.08x = 754.74 × 517.92
  4. Step 4: Simplify right side
    547.08x = 390,894.94
  5. Step 5: Solve for x
    x = 390,894.94/547.08
  6. Step 6: Final answer
    x = 714.51

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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.