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Finding the Fourth Proportional to 576.23, 859.92 and 514.72

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Solution

The fourth proportional to 576.23, 859.92 and 514.72 is: 768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.23 : 859.92 = 514.72 : x
  2. Step 2: Convert to fraction form
    576.23/859.92 = 514.72/x
  3. Step 3: Cross multiply
    576.23x = 859.92 × 514.72
  4. Step 4: Simplify right side
    576.23x = 442,615.45
  5. Step 5: Solve for x
    x = 442,615.45/576.23
  6. Step 6: Final answer
    x = 768.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.