Home / 2,928,234.78-4,040,935.83-1,687,389.23

Finding the Fourth Proportional to 2,928,234.78, 4,040,935.83 and 1,687,389.23

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Solution

The fourth proportional to 2,928,234.78, 4,040,935.83 and 1,687,389.23 is: 2,328,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,234.78 : 4,040,935.83 = 1,687,389.23 : x
  2. Step 2: Convert to fraction form
    2,928,234.78/4,040,935.83 = 1,687,389.23/x
  3. Step 3: Cross multiply
    2,928,234.78x = 4,040,935.83 × 1,687,389.23
  4. Step 4: Simplify right side
    2,928,234.78x = 6,818,631,608,765.45
  5. Step 5: Solve for x
    x = 6,818,631,608,765.45/2,928,234.78
  6. Step 6: Final answer
    x = 2,328,580.91

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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.