Home / 419,914.88-629,682.72-120,326.84

Finding the Fourth Proportional to 419,914.88, 629,682.72 and 120,326.84

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Solution

The fourth proportional to 419,914.88, 629,682.72 and 120,326.84 is: 180,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,914.88 : 629,682.72 = 120,326.84 : x
  2. Step 2: Convert to fraction form
    419,914.88/629,682.72 = 120,326.84/x
  3. Step 3: Cross multiply
    419,914.88x = 629,682.72 × 120,326.84
  4. Step 4: Simplify right side
    419,914.88x = 75,767,731,900.20
  5. Step 5: Solve for x
    x = 75,767,731,900.20/419,914.88
  6. Step 6: Final answer
    x = 180,435.93

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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.