Home / 419,941.14-629,906.24-104,400.78

Finding the Fourth Proportional to 419,941.14, 629,906.24 and 104,400.78

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Solution

The fourth proportional to 419,941.14, 629,906.24 and 104,400.78 is: 156,599.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,941.14 : 629,906.24 = 104,400.78 : x
  2. Step 2: Convert to fraction form
    419,941.14/629,906.24 = 104,400.78/x
  3. Step 3: Cross multiply
    419,941.14x = 629,906.24 × 104,400.78
  4. Step 4: Simplify right side
    419,941.14x = 65,762,702,782.87
  5. Step 5: Solve for x
    x = 65,762,702,782.87/419,941.14
  6. Step 6: Final answer
    x = 156,599.81

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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.