Home / 876,288.44-1,209,268.78-494,439.48

Finding the Fourth Proportional to 876,288.44, 1,209,268.78 and 494,439.48

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Solution

The fourth proportional to 876,288.44, 1,209,268.78 and 494,439.48 is: 682,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,288.44 : 1,209,268.78 = 494,439.48 : x
  2. Step 2: Convert to fraction form
    876,288.44/1,209,268.78 = 494,439.48/x
  3. Step 3: Cross multiply
    876,288.44x = 1,209,268.78 × 494,439.48
  4. Step 4: Simplify right side
    876,288.44x = 597,910,226,763.44
  5. Step 5: Solve for x
    x = 597,910,226,763.44/876,288.44
  6. Step 6: Final answer
    x = 682,321.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.