Home / 1,391,690.70-2,087,244.45-682,227.90

Finding the Fourth Proportional to 1,391,690.70, 2,087,244.45 and 682,227.90

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Solution

The fourth proportional to 1,391,690.70, 2,087,244.45 and 682,227.90 is: 1,023,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,690.70 : 2,087,244.45 = 682,227.90 : x
  2. Step 2: Convert to fraction form
    1,391,690.70/2,087,244.45 = 682,227.90/x
  3. Step 3: Cross multiply
    1,391,690.70x = 2,087,244.45 × 682,227.90
  4. Step 4: Simplify right side
    1,391,690.70x = 1,423,976,397,910.16
  5. Step 5: Solve for x
    x = 1,423,976,397,910.16/1,391,690.70
  6. Step 6: Final answer
    x = 1,023,198.90

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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.