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Finding the Fourth Proportional to 882.38, 1,324.29 and 369.74

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Solution

The fourth proportional to 882.38, 1,324.29 and 369.74 is: 554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.38 : 1,324.29 = 369.74 : x
  2. Step 2: Convert to fraction form
    882.38/1,324.29 = 369.74/x
  3. Step 3: Cross multiply
    882.38x = 1,324.29 × 369.74
  4. Step 4: Simplify right side
    882.38x = 489,642.98
  5. Step 5: Solve for x
    x = 489,642.98/882.38
  6. Step 6: Final answer
    x = 554.91

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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.