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Finding the Fourth Proportional to 663,104.80, 994,786.80 and 263,677.60

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Solution

The fourth proportional to 663,104.80, 994,786.80 and 263,677.60 is: 395,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,104.80 : 994,786.80 = 263,677.60 : x
  2. Step 2: Convert to fraction form
    663,104.80/994,786.80 = 263,677.60/x
  3. Step 3: Cross multiply
    663,104.80x = 994,786.80 × 263,677.60
  4. Step 4: Simplify right side
    663,104.80x = 262,302,995,935.68
  5. Step 5: Solve for x
    x = 262,302,995,935.68/663,104.80
  6. Step 6: Final answer
    x = 395,567.93

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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.