Home / 1,268,388.76-1,900,048.26-762,672.88

Finding the Fourth Proportional to 1,268,388.76, 1,900,048.26 and 762,672.88

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Solution

The fourth proportional to 1,268,388.76, 1,900,048.26 and 762,672.88 is: 1,142,485.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,388.76 : 1,900,048.26 = 762,672.88 : x
  2. Step 2: Convert to fraction form
    1,268,388.76/1,900,048.26 = 762,672.88/x
  3. Step 3: Cross multiply
    1,268,388.76x = 1,900,048.26 × 762,672.88
  4. Step 4: Simplify right side
    1,268,388.76x = 1,449,115,278,593.19
  5. Step 5: Solve for x
    x = 1,449,115,278,593.19/1,268,388.76
  6. Step 6: Final answer
    x = 1,142,485.12

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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.