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Finding the Fourth Proportional to 641,393.37, 961,793.60 and 360,910.62

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Solution

The fourth proportional to 641,393.37, 961,793.60 and 360,910.62 is: 541,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,393.37 : 961,793.60 = 360,910.62 : x
  2. Step 2: Convert to fraction form
    641,393.37/961,793.60 = 360,910.62/x
  3. Step 3: Cross multiply
    641,393.37x = 961,793.60 × 360,910.62
  4. Step 4: Simplify right side
    641,393.37x = 347,121,522,683.48
  5. Step 5: Solve for x
    x = 347,121,522,683.48/641,393.37
  6. Step 6: Final answer
    x = 541,199.11

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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.