Home / 817,013.80-1,225,520.70-726,812.20

Finding the Fourth Proportional to 817,013.80, 1,225,520.70 and 726,812.20

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Solution

The fourth proportional to 817,013.80, 1,225,520.70 and 726,812.20 is: 1,090,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,013.80 : 1,225,520.70 = 726,812.20 : x
  2. Step 2: Convert to fraction form
    817,013.80/1,225,520.70 = 726,812.20/x
  3. Step 3: Cross multiply
    817,013.80x = 1,225,520.70 × 726,812.20
  4. Step 4: Simplify right side
    817,013.80x = 890,723,396,112.54
  5. Step 5: Solve for x
    x = 890,723,396,112.54/817,013.80
  6. Step 6: Final answer
    x = 1,090,218.30

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Similar ratio
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1.5x scale

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.