Home / 641,022.89-961,179.32-262,209.63

Finding the Fourth Proportional to 641,022.89, 961,179.32 and 262,209.63

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Solution

The fourth proportional to 641,022.89, 961,179.32 and 262,209.63 is: 393,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,022.89 : 961,179.32 = 262,209.63 : x
  2. Step 2: Convert to fraction form
    641,022.89/961,179.32 = 262,209.63/x
  3. Step 3: Cross multiply
    641,022.89x = 961,179.32 × 262,209.63
  4. Step 4: Simplify right side
    641,022.89x = 252,030,473,860.85
  5. Step 5: Solve for x
    x = 252,030,473,860.85/641,022.89
  6. Step 6: Final answer
    x = 393,169.23

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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.