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Finding the Fourth Proportional to 422,845.52, 634,206.65 and 123,245.62

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Solution

The fourth proportional to 422,845.52, 634,206.65 and 123,245.62 is: 184,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,845.52 : 634,206.65 = 123,245.62 : x
  2. Step 2: Convert to fraction form
    422,845.52/634,206.65 = 123,245.62/x
  3. Step 3: Cross multiply
    422,845.52x = 634,206.65 × 123,245.62
  4. Step 4: Simplify right side
    422,845.52x = 78,163,189,585.63
  5. Step 5: Solve for x
    x = 78,163,189,585.63/422,845.52
  6. Step 6: Final answer
    x = 184,850.46

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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.