Home / 419,728.20-629,738.10-183,240.60

Finding the Fourth Proportional to 419,728.20, 629,738.10 and 183,240.60

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Solution

The fourth proportional to 419,728.20, 629,738.10 and 183,240.60 is: 274,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,728.20 : 629,738.10 = 183,240.60 : x
  2. Step 2: Convert to fraction form
    419,728.20/629,738.10 = 183,240.60/x
  3. Step 3: Cross multiply
    419,728.20x = 629,738.10 × 183,240.60
  4. Step 4: Simplify right side
    419,728.20x = 115,393,587,286.86
  5. Step 5: Solve for x
    x = 115,393,587,286.86/419,728.20
  6. Step 6: Final answer
    x = 274,924.55

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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.