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Finding the Fourth Proportional to 683,937.43, 943,882.50 and 378,007.24

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Solution

The fourth proportional to 683,937.43, 943,882.50 and 378,007.24 is: 521,676.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,937.43 : 943,882.50 = 378,007.24 : x
  2. Step 2: Convert to fraction form
    683,937.43/943,882.50 = 378,007.24/x
  3. Step 3: Cross multiply
    683,937.43x = 943,882.50 × 378,007.24
  4. Step 4: Simplify right side
    683,937.43x = 356,794,418,709.30
  5. Step 5: Solve for x
    x = 356,794,418,709.30/683,937.43
  6. Step 6: Final answer
    x = 521,676.99

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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.