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Finding the Fourth Proportional to 664,198.80, 996,427.80 and 285,118.80

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Solution

The fourth proportional to 664,198.80, 996,427.80 and 285,118.80 is: 427,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,198.80 : 996,427.80 = 285,118.80 : x
  2. Step 2: Convert to fraction form
    664,198.80/996,427.80 = 285,118.80/x
  3. Step 3: Cross multiply
    664,198.80x = 996,427.80 × 285,118.80
  4. Step 4: Simplify right side
    664,198.80x = 284,100,298,622.64
  5. Step 5: Solve for x
    x = 284,100,298,622.64/664,198.80
  6. Step 6: Final answer
    x = 427,733.83

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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.