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Finding the Fourth Proportional to 882.63, 1,217.43 and 602.42

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Solution

The fourth proportional to 882.63, 1,217.43 and 602.42 is: 830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.63 : 1,217.43 = 602.42 : x
  2. Step 2: Convert to fraction form
    882.63/1,217.43 = 602.42/x
  3. Step 3: Cross multiply
    882.63x = 1,217.43 × 602.42
  4. Step 4: Simplify right side
    882.63x = 733,398.09
  5. Step 5: Solve for x
    x = 733,398.09/882.63
  6. Step 6: Final answer
    x = 830.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.