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Finding the Fourth Proportional to 996,192, 1,494,288 and 331,344

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Solution

The fourth proportional to 996,192, 1,494,288 and 331,344 is: 497,016

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,192 : 1,494,288 = 331,344 : x
  2. Step 2: Convert to fraction form
    996,192/1,494,288 = 331,344/x
  3. Step 3: Cross multiply
    996,192x = 1,494,288 × 331,344
  4. Step 4: Simplify right side
    996,192x = 495,123,363,072
  5. Step 5: Solve for x
    x = 495,123,363,072/996,192
  6. Step 6: Final answer
    x = 497,016

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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.