Home / 854,790.20-1,185,004.79-809,286.02

Finding the Fourth Proportional to 854,790.20, 1,185,004.79 and 809,286.02

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Solution

The fourth proportional to 854,790.20, 1,185,004.79 and 809,286.02 is: 1,121,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,790.20 : 1,185,004.79 = 809,286.02 : x
  2. Step 2: Convert to fraction form
    854,790.20/1,185,004.79 = 809,286.02/x
  3. Step 3: Cross multiply
    854,790.20x = 1,185,004.79 × 809,286.02
  4. Step 4: Simplify right side
    854,790.20x = 959,007,810,180.04
  5. Step 5: Solve for x
    x = 959,007,810,180.04/854,790.20
  6. Step 6: Final answer
    x = 1,121,921.86

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.