Home / 419,904.27-629,965.00-120,406.77

Finding the Fourth Proportional to 419,904.27, 629,965.00 and 120,406.77

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Solution

The fourth proportional to 419,904.27, 629,965.00 and 120,406.77 is: 180,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904.27 : 629,965.00 = 120,406.77 : x
  2. Step 2: Convert to fraction form
    419,904.27/629,965.00 = 120,406.77/x
  3. Step 3: Cross multiply
    419,904.27x = 629,965.00 × 120,406.77
  4. Step 4: Simplify right side
    419,904.27x = 75,852,053,375.93
  5. Step 5: Solve for x
    x = 75,852,053,375.93/419,904.27
  6. Step 6: Final answer
    x = 180,641.30

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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.