Home / 1,268,361.80-1,900,007.78-762,645.86

Finding the Fourth Proportional to 1,268,361.80, 1,900,007.78 and 762,645.86

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Solution

The fourth proportional to 1,268,361.80, 1,900,007.78 and 762,645.86 is: 1,142,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,361.80 : 1,900,007.78 = 762,645.86 : x
  2. Step 2: Convert to fraction form
    1,268,361.80/1,900,007.78 = 762,645.86/x
  3. Step 3: Cross multiply
    1,268,361.80x = 1,900,007.78 × 762,645.86
  4. Step 4: Simplify right side
    1,268,361.80x = 1,449,033,067,384.79
  5. Step 5: Solve for x
    x = 1,449,033,067,384.79/1,268,361.80
  6. Step 6: Final answer
    x = 1,142,444.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.