Home / 1,389,353.25-2,083,738.23-391,847.97

Finding the Fourth Proportional to 1,389,353.25, 2,083,738.23 and 391,847.97

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Solution

The fourth proportional to 1,389,353.25, 2,083,738.23 and 391,847.97 is: 587,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,353.25 : 2,083,738.23 = 391,847.97 : x
  2. Step 2: Convert to fraction form
    1,389,353.25/2,083,738.23 = 391,847.97/x
  3. Step 3: Cross multiply
    1,389,353.25x = 2,083,738.23 × 391,847.97
  4. Step 4: Simplify right side
    1,389,353.25x = 816,508,595,436.89
  5. Step 5: Solve for x
    x = 816,508,595,436.89/1,389,353.25
  6. Step 6: Final answer
    x = 587,689.70

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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.