Home / 1,519,209.20-2,278,449.30-878,126.60

Finding the Fourth Proportional to 1,519,209.20, 2,278,449.30 and 878,126.60

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Solution

The fourth proportional to 1,519,209.20, 2,278,449.30 and 878,126.60 is: 1,316,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,209.20 : 2,278,449.30 = 878,126.60 : x
  2. Step 2: Convert to fraction form
    1,519,209.20/2,278,449.30 = 878,126.60/x
  3. Step 3: Cross multiply
    1,519,209.20x = 2,278,449.30 × 878,126.60
  4. Step 4: Simplify right side
    1,519,209.20x = 2,000,766,937,081.38
  5. Step 5: Solve for x
    x = 2,000,766,937,081.38/1,519,209.20
  6. Step 6: Final answer
    x = 1,316,979.21

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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.