Home / 419,634.37-629,003.34-239,331.61

Finding the Fourth Proportional to 419,634.37, 629,003.34 and 239,331.61

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Solution

The fourth proportional to 419,634.37, 629,003.34 and 239,331.61 is: 358,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,634.37 : 629,003.34 = 239,331.61 : x
  2. Step 2: Convert to fraction form
    419,634.37/629,003.34 = 239,331.61/x
  3. Step 3: Cross multiply
    419,634.37x = 629,003.34 × 239,331.61
  4. Step 4: Simplify right side
    419,634.37x = 150,540,380,485.07
  5. Step 5: Solve for x
    x = 150,540,380,485.07/419,634.37
  6. Step 6: Final answer
    x = 358,741.78

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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.