Home / 683,937.31-943,882.33-378,007.11

Finding the Fourth Proportional to 683,937.31, 943,882.33 and 378,007.11

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Solution

The fourth proportional to 683,937.31, 943,882.33 and 378,007.11 is: 521,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,937.31 : 943,882.33 = 378,007.11 : x
  2. Step 2: Convert to fraction form
    683,937.31/943,882.33 = 378,007.11/x
  3. Step 3: Cross multiply
    683,937.31x = 943,882.33 × 378,007.11
  4. Step 4: Simplify right side
    683,937.31x = 356,794,231,743.37
  5. Step 5: Solve for x
    x = 356,794,231,743.37/683,937.31
  6. Step 6: Final answer
    x = 521,676.81

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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.