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Finding the Fourth Proportional to 576.91, 864.15 and 527.10

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Solution

The fourth proportional to 576.91, 864.15 and 527.10 is: 789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.91 : 864.15 = 527.10 : x
  2. Step 2: Convert to fraction form
    576.91/864.15 = 527.10/x
  3. Step 3: Cross multiply
    576.91x = 864.15 × 527.10
  4. Step 4: Simplify right side
    576.91x = 455,493.47
  5. Step 5: Solve for x
    x = 455,493.47/576.91
  6. Step 6: Final answer
    x = 789.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.