Home / 419,899.40-629,849.10-251,937.80

Finding the Fourth Proportional to 419,899.40, 629,849.10 and 251,937.80

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Solution

The fourth proportional to 419,899.40, 629,849.10 and 251,937.80 is: 377,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,899.40 : 629,849.10 = 251,937.80 : x
  2. Step 2: Convert to fraction form
    419,899.40/629,849.10 = 251,937.80/x
  3. Step 3: Cross multiply
    419,899.40x = 629,849.10 × 251,937.80
  4. Step 4: Simplify right side
    419,899.40x = 158,682,796,585.98
  5. Step 5: Solve for x
    x = 158,682,796,585.98/419,899.40
  6. Step 6: Final answer
    x = 377,906.70

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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.