Home / 2,612,936.77-3,919,403.70-815,974.25

Finding the Fourth Proportional to 2,612,936.77, 3,919,403.70 and 815,974.25

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Solution

The fourth proportional to 2,612,936.77, 3,919,403.70 and 815,974.25 is: 1,223,960.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,936.77 : 3,919,403.70 = 815,974.25 : x
  2. Step 2: Convert to fraction form
    2,612,936.77/3,919,403.70 = 815,974.25/x
  3. Step 3: Cross multiply
    2,612,936.77x = 3,919,403.70 × 815,974.25
  4. Step 4: Simplify right side
    2,612,936.77x = 3,198,132,474,957.71
  5. Step 5: Solve for x
    x = 3,198,132,474,957.71/2,612,936.77
  6. Step 6: Final answer
    x = 1,223,960.91

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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.