Home / 880,845.40-1,321,268.10-809,986.60

Finding the Fourth Proportional to 880,845.40, 1,321,268.10 and 809,986.60

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Solution

The fourth proportional to 880,845.40, 1,321,268.10 and 809,986.60 is: 1,214,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,845.40 : 1,321,268.10 = 809,986.60 : x
  2. Step 2: Convert to fraction form
    880,845.40/1,321,268.10 = 809,986.60/x
  3. Step 3: Cross multiply
    880,845.40x = 1,321,268.10 × 809,986.60
  4. Step 4: Simplify right side
    880,845.40x = 1,070,209,456,007.46
  5. Step 5: Solve for x
    x = 1,070,209,456,007.46/880,845.40
  6. Step 6: Final answer
    x = 1,214,979.90

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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.