Home / 1,260,311.20-1,891,695.60-629,936.80

Finding the Fourth Proportional to 1,260,311.20, 1,891,695.60 and 629,936.80

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Solution

The fourth proportional to 1,260,311.20, 1,891,695.60 and 629,936.80 is: 945,519.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,311.20 : 1,891,695.60 = 629,936.80 : x
  2. Step 2: Convert to fraction form
    1,260,311.20/1,891,695.60 = 629,936.80/x
  3. Step 3: Cross multiply
    1,260,311.20x = 1,891,695.60 × 629,936.80
  4. Step 4: Simplify right side
    1,260,311.20x = 1,191,648,672,838.08
  5. Step 5: Solve for x
    x = 1,191,648,672,838.08/1,260,311.20
  6. Step 6: Final answer
    x = 945,519.39

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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.