Home / 419,772.10-629,844.27-220,044.82

Finding the Fourth Proportional to 419,772.10, 629,844.27 and 220,044.82

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Solution

The fourth proportional to 419,772.10, 629,844.27 and 220,044.82 is: 330,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,772.10 : 629,844.27 = 220,044.82 : x
  2. Step 2: Convert to fraction form
    419,772.10/629,844.27 = 220,044.82/x
  3. Step 3: Cross multiply
    419,772.10x = 629,844.27 × 220,044.82
  4. Step 4: Simplify right side
    419,772.10x = 138,593,969,020.18
  5. Step 5: Solve for x
    x = 138,593,969,020.18/419,772.10
  6. Step 6: Final answer
    x = 330,164.79

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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.