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Finding the Fourth Proportional to 882.17, 1,322.82 and 517.08

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Solution

The fourth proportional to 882.17, 1,322.82 and 517.08 is: 775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.17 : 1,322.82 = 517.08 : x
  2. Step 2: Convert to fraction form
    882.17/1,322.82 = 517.08/x
  3. Step 3: Cross multiply
    882.17x = 1,322.82 × 517.08
  4. Step 4: Simplify right side
    882.17x = 684,003.77
  5. Step 5: Solve for x
    x = 684,003.77/882.17
  6. Step 6: Final answer
    x = 775.37

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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.