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Finding the Fourth Proportional to 536,906.60, 805,619.10 and 378,794.60

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Solution

The fourth proportional to 536,906.60, 805,619.10 and 378,794.60 is: 568,374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,906.60 : 805,619.10 = 378,794.60 : x
  2. Step 2: Convert to fraction form
    536,906.60/805,619.10 = 378,794.60/x
  3. Step 3: Cross multiply
    536,906.60x = 805,619.10 × 378,794.60
  4. Step 4: Simplify right side
    536,906.60x = 305,164,164,736.86
  5. Step 5: Solve for x
    x = 305,164,164,736.86/536,906.60
  6. Step 6: Final answer
    x = 568,374.77

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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.