Home / 1,260,309.20-1,891,692.60-629,934.80

Finding the Fourth Proportional to 1,260,309.20, 1,891,692.60 and 629,934.80

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Solution

The fourth proportional to 1,260,309.20, 1,891,692.60 and 629,934.80 is: 945,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,309.20 : 1,891,692.60 = 629,934.80 : x
  2. Step 2: Convert to fraction form
    1,260,309.20/1,891,692.60 = 629,934.80/x
  3. Step 3: Cross multiply
    1,260,309.20x = 1,891,692.60 × 629,934.80
  4. Step 4: Simplify right side
    1,260,309.20x = 1,191,642,999,642.48
  5. Step 5: Solve for x
    x = 1,191,642,999,642.48/1,260,309.20
  6. Step 6: Final answer
    x = 945,516.39

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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.