Home / 1,260,315.20-1,891,701.60-629,940.80

Finding the Fourth Proportional to 1,260,315.20, 1,891,701.60 and 629,940.80

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Solution

The fourth proportional to 1,260,315.20, 1,891,701.60 and 629,940.80 is: 945,525.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,315.20 : 1,891,701.60 = 629,940.80 : x
  2. Step 2: Convert to fraction form
    1,260,315.20/1,891,701.60 = 629,940.80/x
  3. Step 3: Cross multiply
    1,260,315.20x = 1,891,701.60 × 629,940.80
  4. Step 4: Simplify right side
    1,260,315.20x = 1,191,660,019,265.28
  5. Step 5: Solve for x
    x = 1,191,660,019,265.28/1,260,315.20
  6. Step 6: Final answer
    x = 945,525.39

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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.