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Finding the Fourth Proportional to 641,216.20, 960,512.10 and 325,850.80

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Solution

The fourth proportional to 641,216.20, 960,512.10 and 325,850.80 is: 488,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,216.20 : 960,512.10 = 325,850.80 : x
  2. Step 2: Convert to fraction form
    641,216.20/960,512.10 = 325,850.80/x
  3. Step 3: Cross multiply
    641,216.20x = 960,512.10 × 325,850.80
  4. Step 4: Simplify right side
    641,216.20x = 312,983,636,194.68
  5. Step 5: Solve for x
    x = 312,983,636,194.68/641,216.20
  6. Step 6: Final answer
    x = 488,109.37

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1.5x scale

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.