Home / 2,661,259.20-3,990,904.65-864,201.30

Finding the Fourth Proportional to 2,661,259.20, 3,990,904.65 and 864,201.30

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Solution

The fourth proportional to 2,661,259.20, 3,990,904.65 and 864,201.30 is: 1,295,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,259.20 : 3,990,904.65 = 864,201.30 : x
  2. Step 2: Convert to fraction form
    2,661,259.20/3,990,904.65 = 864,201.30/x
  3. Step 3: Cross multiply
    2,661,259.20x = 3,990,904.65 × 864,201.30
  4. Step 4: Simplify right side
    2,661,259.20x = 3,448,944,986,706.05
  5. Step 5: Solve for x
    x = 3,448,944,986,706.05/2,661,259.20
  6. Step 6: Final answer
    x = 1,295,982.36

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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.