Home / 789,401.26-1,183,920.78-220,822.61

Finding the Fourth Proportional to 789,401.26, 1,183,920.78 and 220,822.61

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Solution

The fourth proportional to 789,401.26, 1,183,920.78 and 220,822.61 is: 331,183.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,401.26 : 1,183,920.78 = 220,822.61 : x
  2. Step 2: Convert to fraction form
    789,401.26/1,183,920.78 = 220,822.61/x
  3. Step 3: Cross multiply
    789,401.26x = 1,183,920.78 × 220,822.61
  4. Step 4: Simplify right side
    789,401.26x = 261,436,475,954.92
  5. Step 5: Solve for x
    x = 261,436,475,954.92/789,401.26
  6. Step 6: Final answer
    x = 331,183.25

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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.