Home / 694,220.76-1,040,142.42-378,898.92

Finding the Fourth Proportional to 694,220.76, 1,040,142.42 and 378,898.92

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Solution

The fourth proportional to 694,220.76, 1,040,142.42 and 378,898.92 is: 567,699.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,220.76 : 1,040,142.42 = 378,898.92 : x
  2. Step 2: Convert to fraction form
    694,220.76/1,040,142.42 = 378,898.92/x
  3. Step 3: Cross multiply
    694,220.76x = 1,040,142.42 × 378,898.92
  4. Step 4: Simplify right side
    694,220.76x = 394,108,839,584.19
  5. Step 5: Solve for x
    x = 394,108,839,584.19/694,220.76
  6. Step 6: Final answer
    x = 567,699.59

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1.5x scale

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.