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Finding the Fourth Proportional to 419,950.98, 629,797.05 and 120,351.24

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Solution

The fourth proportional to 419,950.98, 629,797.05 and 120,351.24 is: 180,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,950.98 : 629,797.05 = 120,351.24 : x
  2. Step 2: Convert to fraction form
    419,950.98/629,797.05 = 120,351.24/x
  3. Step 3: Cross multiply
    419,950.98x = 629,797.05 × 120,351.24
  4. Step 4: Simplify right side
    419,950.98x = 75,796,855,915.84
  5. Step 5: Solve for x
    x = 75,796,855,915.84/419,950.98
  6. Step 6: Final answer
    x = 180,489.77

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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.