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Finding the Fourth Proportional to 543.52, 811.13 and 462.52

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Solution

The fourth proportional to 543.52, 811.13 and 462.52 is: 690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.52 : 811.13 = 462.52 : x
  2. Step 2: Convert to fraction form
    543.52/811.13 = 462.52/x
  3. Step 3: Cross multiply
    543.52x = 811.13 × 462.52
  4. Step 4: Simplify right side
    543.52x = 375,163.85
  5. Step 5: Solve for x
    x = 375,163.85/543.52
  6. Step 6: Final answer
    x = 690.25

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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.