Home / 2,145,727.20-3,220,664.40-1,305,919.20

Finding the Fourth Proportional to 2,145,727.20, 3,220,664.40 and 1,305,919.20

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Solution

The fourth proportional to 2,145,727.20, 3,220,664.40 and 1,305,919.20 is: 1,960,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,727.20 : 3,220,664.40 = 1,305,919.20 : x
  2. Step 2: Convert to fraction form
    2,145,727.20/3,220,664.40 = 1,305,919.20/x
  3. Step 3: Cross multiply
    2,145,727.20x = 3,220,664.40 × 1,305,919.20
  4. Step 4: Simplify right side
    2,145,727.20x = 4,205,927,476,716.48
  5. Step 5: Solve for x
    x = 4,205,927,476,716.48/2,145,727.20
  6. Step 6: Final answer
    x = 1,960,140.82

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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.