Home / 2,661,836.40-3,992,754.60-1,906,009.20

Finding the Fourth Proportional to 2,661,836.40, 3,992,754.60 and 1,906,009.20

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Solution

The fourth proportional to 2,661,836.40, 3,992,754.60 and 1,906,009.20 is: 2,859,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,836.40 : 3,992,754.60 = 1,906,009.20 : x
  2. Step 2: Convert to fraction form
    2,661,836.40/3,992,754.60 = 1,906,009.20/x
  3. Step 3: Cross multiply
    2,661,836.40x = 3,992,754.60 × 1,906,009.20
  4. Step 4: Simplify right side
    2,661,836.40x = 7,610,227,000,942.32
  5. Step 5: Solve for x
    x = 7,610,227,000,942.32/2,661,836.40
  6. Step 6: Final answer
    x = 2,859,013.80

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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.