Home / 419,957.28-629,936.39-104,414.22

Finding the Fourth Proportional to 419,957.28, 629,936.39 and 104,414.22

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Solution

The fourth proportional to 419,957.28, 629,936.39 and 104,414.22 is: 156,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,957.28 : 629,936.39 = 104,414.22 : x
  2. Step 2: Convert to fraction form
    419,957.28/629,936.39 = 104,414.22/x
  3. Step 3: Cross multiply
    419,957.28x = 629,936.39 × 104,414.22
  4. Step 4: Simplify right side
    419,957.28x = 65,774,317,072.50
  5. Step 5: Solve for x
    x = 65,774,317,072.50/419,957.28
  6. Step 6: Final answer
    x = 156,621.45

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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.