Home / 880,834.20-1,321,251.30-812,405.40

Finding the Fourth Proportional to 880,834.20, 1,321,251.30 and 812,405.40

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Solution

The fourth proportional to 880,834.20, 1,321,251.30 and 812,405.40 is: 1,218,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,834.20 : 1,321,251.30 = 812,405.40 : x
  2. Step 2: Convert to fraction form
    880,834.20/1,321,251.30 = 812,405.40/x
  3. Step 3: Cross multiply
    880,834.20x = 1,321,251.30 × 812,405.40
  4. Step 4: Simplify right side
    880,834.20x = 1,073,391,690,877.02
  5. Step 5: Solve for x
    x = 1,073,391,690,877.02/880,834.20
  6. Step 6: Final answer
    x = 1,218,608.10

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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.