Home / 419,933.37-629,910.99-120,401.85

Finding the Fourth Proportional to 419,933.37, 629,910.99 and 120,401.85

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Solution

The fourth proportional to 419,933.37, 629,910.99 and 120,401.85 is: 180,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,933.37 : 629,910.99 = 120,401.85 : x
  2. Step 2: Convert to fraction form
    419,933.37/629,910.99 = 120,401.85/x
  3. Step 3: Cross multiply
    419,933.37x = 629,910.99 × 120,401.85
  4. Step 4: Simplify right side
    419,933.37x = 75,842,448,531.33
  5. Step 5: Solve for x
    x = 75,842,448,531.33/419,933.37
  6. Step 6: Final answer
    x = 180,605.91

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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.