Home / 2,785,455-3,843,986.22-1,578,231

Finding the Fourth Proportional to 2,785,455, 3,843,986.22 and 1,578,231

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Solution

The fourth proportional to 2,785,455, 3,843,986.22 and 1,578,231 is: 2,177,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785,455 : 3,843,986.22 = 1,578,231 : x
  2. Step 2: Convert to fraction form
    2,785,455/3,843,986.22 = 1,578,231/x
  3. Step 3: Cross multiply
    2,785,455x = 3,843,986.22 × 1,578,231
  4. Step 4: Simplify right side
    2,785,455x = 6,066,698,215,976.82
  5. Step 5: Solve for x
    x = 6,066,698,215,976.82/2,785,455
  6. Step 6: Final answer
    x = 2,177,991.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.