Home / 694,102.60-1,040,462.70-319,472.20

Finding the Fourth Proportional to 694,102.60, 1,040,462.70 and 319,472.20

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Solution

The fourth proportional to 694,102.60, 1,040,462.70 and 319,472.20 is: 478,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,102.60 : 1,040,462.70 = 319,472.20 : x
  2. Step 2: Convert to fraction form
    694,102.60/1,040,462.70 = 319,472.20/x
  3. Step 3: Cross multiply
    694,102.60x = 1,040,462.70 × 319,472.20
  4. Step 4: Simplify right side
    694,102.60x = 332,398,907,786.94
  5. Step 5: Solve for x
    x = 332,398,907,786.94/694,102.60
  6. Step 6: Final answer
    x = 478,890.16

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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.