Home / 880,909.20-1,321,363.80-821,422.80

Finding the Fourth Proportional to 880,909.20, 1,321,363.80 and 821,422.80

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Solution

The fourth proportional to 880,909.20, 1,321,363.80 and 821,422.80 is: 1,232,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,909.20 : 1,321,363.80 = 821,422.80 : x
  2. Step 2: Convert to fraction form
    880,909.20/1,321,363.80 = 821,422.80/x
  3. Step 3: Cross multiply
    880,909.20x = 1,321,363.80 × 821,422.80
  4. Step 4: Simplify right side
    880,909.20x = 1,085,398,352,414.64
  5. Step 5: Solve for x
    x = 1,085,398,352,414.64/880,909.20
  6. Step 6: Final answer
    x = 1,232,134.20

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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.