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Finding the Fourth Proportional to 552.66, 767.79 and 547.56

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Solution

The fourth proportional to 552.66, 767.79 and 547.56 is: 760.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.66 : 767.79 = 547.56 : x
  2. Step 2: Convert to fraction form
    552.66/767.79 = 547.56/x
  3. Step 3: Cross multiply
    552.66x = 767.79 × 547.56
  4. Step 4: Simplify right side
    552.66x = 420,411.09
  5. Step 5: Solve for x
    x = 420,411.09/552.66
  6. Step 6: Final answer
    x = 760.70

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.