Home / 2,928,237.31-4,040,939.37-1,687,391.80

Finding the Fourth Proportional to 2,928,237.31, 4,040,939.37 and 1,687,391.80

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Solution

The fourth proportional to 2,928,237.31, 4,040,939.37 and 1,687,391.80 is: 2,328,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,237.31 : 4,040,939.37 = 1,687,391.80 : x
  2. Step 2: Convert to fraction form
    2,928,237.31/4,040,939.37 = 1,687,391.80/x
  3. Step 3: Cross multiply
    2,928,237.31x = 4,040,939.37 × 1,687,391.80
  4. Step 4: Simplify right side
    2,928,237.31x = 6,818,647,953,460.54
  5. Step 5: Solve for x
    x = 6,818,647,953,460.54/2,928,237.31
  6. Step 6: Final answer
    x = 2,328,584.48

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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.