Home / 641,021.89-961,177.82-262,208.63

Finding the Fourth Proportional to 641,021.89, 961,177.82 and 262,208.63

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Solution

The fourth proportional to 641,021.89, 961,177.82 and 262,208.63 is: 393,167.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,021.89 : 961,177.82 = 262,208.63 : x
  2. Step 2: Convert to fraction form
    641,021.89/961,177.82 = 262,208.63/x
  3. Step 3: Cross multiply
    641,021.89x = 961,177.82 × 262,208.63
  4. Step 4: Simplify right side
    641,021.89x = 252,029,119,368.59
  5. Step 5: Solve for x
    x = 252,029,119,368.59/641,021.89
  6. Step 6: Final answer
    x = 393,167.73

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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.