Home / 1,315,984.12-1,976,772.96-1,239,195.88

Finding the Fourth Proportional to 1,315,984.12, 1,976,772.96 and 1,239,195.88

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Solution

The fourth proportional to 1,315,984.12, 1,976,772.96 and 1,239,195.88 is: 1,861,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,984.12 : 1,976,772.96 = 1,239,195.88 : x
  2. Step 2: Convert to fraction form
    1,315,984.12/1,976,772.96 = 1,239,195.88/x
  3. Step 3: Cross multiply
    1,315,984.12x = 1,976,772.96 × 1,239,195.88
  4. Step 4: Simplify right side
    1,315,984.12x = 2,449,608,907,727.40
  5. Step 5: Solve for x
    x = 2,449,608,907,727.40/1,315,984.12
  6. Step 6: Final answer
    x = 1,861,427.41

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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.