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Finding the Fourth Proportional to 650.39, 976.37 and 547.43

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Solution

The fourth proportional to 650.39, 976.37 and 547.43 is: 821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.39 : 976.37 = 547.43 : x
  2. Step 2: Convert to fraction form
    650.39/976.37 = 547.43/x
  3. Step 3: Cross multiply
    650.39x = 976.37 × 547.43
  4. Step 4: Simplify right side
    650.39x = 534,486.61
  5. Step 5: Solve for x
    x = 534,486.61/650.39
  6. Step 6: Final answer
    x = 821.80

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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.