Home / 1,942,391.70-2,912,205.15-743,850.90

Finding the Fourth Proportional to 1,942,391.70, 2,912,205.15 and 743,850.90

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Solution

The fourth proportional to 1,942,391.70, 2,912,205.15 and 743,850.90 is: 1,115,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,391.70 : 2,912,205.15 = 743,850.90 : x
  2. Step 2: Convert to fraction form
    1,942,391.70/2,912,205.15 = 743,850.90/x
  3. Step 3: Cross multiply
    1,942,391.70x = 2,912,205.15 × 743,850.90
  4. Step 4: Simplify right side
    1,942,391.70x = 2,166,246,421,812.14
  5. Step 5: Solve for x
    x = 2,166,246,421,812.14/1,942,391.70
  6. Step 6: Final answer
    x = 1,115,246.95

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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.