Home / 961,958.94-1,443,135.21-330,790.78

Finding the Fourth Proportional to 961,958.94, 1,443,135.21 and 330,790.78

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Solution

The fourth proportional to 961,958.94, 1,443,135.21 and 330,790.78 is: 496,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,958.94 : 1,443,135.21 = 330,790.78 : x
  2. Step 2: Convert to fraction form
    961,958.94/1,443,135.21 = 330,790.78/x
  3. Step 3: Cross multiply
    961,958.94x = 1,443,135.21 × 330,790.78
  4. Step 4: Simplify right side
    961,958.94x = 477,375,821,761.36
  5. Step 5: Solve for x
    x = 477,375,821,761.36/961,958.94
  6. Step 6: Final answer
    x = 496,253.84

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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.