Home / 1,942,890.30-2,912,197.05-680,067.90

Finding the Fourth Proportional to 1,942,890.30, 2,912,197.05 and 680,067.90

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Solution

The fourth proportional to 1,942,890.30, 2,912,197.05 and 680,067.90 is: 1,019,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,890.30 : 2,912,197.05 = 680,067.90 : x
  2. Step 2: Convert to fraction form
    1,942,890.30/2,912,197.05 = 680,067.90/x
  3. Step 3: Cross multiply
    1,942,890.30x = 2,912,197.05 × 680,067.90
  4. Step 4: Simplify right side
    1,942,890.30x = 1,980,491,732,179.69
  5. Step 5: Solve for x
    x = 1,980,491,732,179.69/1,942,890.30
  6. Step 6: Final answer
    x = 1,019,353.35

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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.