Home / 641,649.68-961,933.12-404,469.44

Finding the Fourth Proportional to 641,649.68, 961,933.12 and 404,469.44

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Solution

The fourth proportional to 641,649.68, 961,933.12 and 404,469.44 is: 606,362.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,649.68 : 961,933.12 = 404,469.44 : x
  2. Step 2: Convert to fraction form
    641,649.68/961,933.12 = 404,469.44/x
  3. Step 3: Cross multiply
    641,649.68x = 961,933.12 × 404,469.44
  4. Step 4: Simplify right side
    641,649.68x = 389,072,550,363.85
  5. Step 5: Solve for x
    x = 389,072,550,363.85/641,649.68
  6. Step 6: Final answer
    x = 606,362.88

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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.