Home / 419,945.54-629,920.62-104,402.45

Finding the Fourth Proportional to 419,945.54, 629,920.62 and 104,402.45

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Solution

The fourth proportional to 419,945.54, 629,920.62 and 104,402.45 is: 156,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,945.54 : 629,920.62 = 104,402.45 : x
  2. Step 2: Convert to fraction form
    419,945.54/629,920.62 = 104,402.45/x
  3. Step 3: Cross multiply
    419,945.54x = 629,920.62 × 104,402.45
  4. Step 4: Simplify right side
    419,945.54x = 65,765,252,361.90
  5. Step 5: Solve for x
    x = 65,765,252,361.90/419,945.54
  6. Step 6: Final answer
    x = 156,604.24

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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.