Home / 2,928,236.78-4,040,938.59-1,687,391.23

Finding the Fourth Proportional to 2,928,236.78, 4,040,938.59 and 1,687,391.23

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Solution

The fourth proportional to 2,928,236.78, 4,040,938.59 and 1,687,391.23 is: 2,328,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,236.78 : 4,040,938.59 = 1,687,391.23 : x
  2. Step 2: Convert to fraction form
    2,928,236.78/4,040,938.59 = 1,687,391.23/x
  3. Step 3: Cross multiply
    2,928,236.78x = 4,040,938.59 × 1,687,391.23
  4. Step 4: Simplify right side
    2,928,236.78x = 6,818,644,337,734.57
  5. Step 5: Solve for x
    x = 6,818,644,337,734.57/2,928,236.78
  6. Step 6: Final answer
    x = 2,328,583.67

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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.