Home / 925,839.36-1,388,912.94-318,603.42

Finding the Fourth Proportional to 925,839.36, 1,388,912.94 and 318,603.42

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Solution

The fourth proportional to 925,839.36, 1,388,912.94 and 318,603.42 is: 477,958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,839.36 : 1,388,912.94 = 318,603.42 : x
  2. Step 2: Convert to fraction form
    925,839.36/1,388,912.94 = 318,603.42/x
  3. Step 3: Cross multiply
    925,839.36x = 1,388,912.94 × 318,603.42
  4. Step 4: Simplify right side
    925,839.36x = 442,512,412,766.26
  5. Step 5: Solve for x
    x = 442,512,412,766.26/925,839.36
  6. Step 6: Final answer
    x = 477,958.09

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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.