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Finding the Fourth Proportional to 1,040,372, 1,560,558 and 252,404

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Solution

The fourth proportional to 1,040,372, 1,560,558 and 252,404 is: 378,606

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,372 : 1,560,558 = 252,404 : x
  2. Step 2: Convert to fraction form
    1,040,372/1,560,558 = 252,404/x
  3. Step 3: Cross multiply
    1,040,372x = 1,560,558 × 252,404
  4. Step 4: Simplify right side
    1,040,372x = 393,891,081,432
  5. Step 5: Solve for x
    x = 393,891,081,432/1,040,372
  6. Step 6: Final answer
    x = 378,606

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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.