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Finding the Fourth Proportional to 994,427, 1,491,640.68 and 329,579

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Solution

The fourth proportional to 994,427, 1,491,640.68 and 329,579 is: 494,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,427 : 1,491,640.68 = 329,579 : x
  2. Step 2: Convert to fraction form
    994,427/1,491,640.68 = 329,579/x
  3. Step 3: Cross multiply
    994,427x = 1,491,640.68 × 329,579
  4. Step 4: Simplify right side
    994,427x = 491,613,443,673.72
  5. Step 5: Solve for x
    x = 491,613,443,673.72/994,427
  6. Step 6: Final answer
    x = 494,368.56

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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.