Home / 2,661,264.70-3,990,912.90-864,206.80

Finding the Fourth Proportional to 2,661,264.70, 3,990,912.90 and 864,206.80

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Solution

The fourth proportional to 2,661,264.70, 3,990,912.90 and 864,206.80 is: 1,295,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,264.70 : 3,990,912.90 = 864,206.80 : x
  2. Step 2: Convert to fraction form
    2,661,264.70/3,990,912.90 = 864,206.80/x
  3. Step 3: Cross multiply
    2,661,264.70x = 3,990,912.90 × 864,206.80
  4. Step 4: Simplify right side
    2,661,264.70x = 3,448,974,066,387.72
  5. Step 5: Solve for x
    x = 3,448,974,066,387.72/2,661,264.70
  6. Step 6: Final answer
    x = 1,295,990.61

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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.