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Finding the Fourth Proportional to 809,668.77, 1,214,419.71 and 269,866.73

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Solution

The fourth proportional to 809,668.77, 1,214,419.71 and 269,866.73 is: 404,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,668.77 : 1,214,419.71 = 269,866.73 : x
  2. Step 2: Convert to fraction form
    809,668.77/1,214,419.71 = 269,866.73/x
  3. Step 3: Cross multiply
    809,668.77x = 1,214,419.71 × 269,866.73
  4. Step 4: Simplify right side
    809,668.77x = 327,731,475,985.25
  5. Step 5: Solve for x
    x = 327,731,475,985.25/809,668.77
  6. Step 6: Final answer
    x = 404,772.28

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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.