Home / 694,103.10-1,040,463.45-319,472.70

Finding the Fourth Proportional to 694,103.10, 1,040,463.45 and 319,472.70

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Solution

The fourth proportional to 694,103.10, 1,040,463.45 and 319,472.70 is: 478,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,103.10 : 1,040,463.45 = 319,472.70 : x
  2. Step 2: Convert to fraction form
    694,103.10/1,040,463.45 = 319,472.70/x
  3. Step 3: Cross multiply
    694,103.10x = 1,040,463.45 × 319,472.70
  4. Step 4: Simplify right side
    694,103.10x = 332,399,667,622.82
  5. Step 5: Solve for x
    x = 332,399,667,622.82/694,103.10
  6. Step 6: Final answer
    x = 478,890.91

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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.