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Finding the Fourth Proportional to 809,727, 1,213,761.06 and 336,687

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Solution

The fourth proportional to 809,727, 1,213,761.06 and 336,687 is: 504,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,727 : 1,213,761.06 = 336,687 : x
  2. Step 2: Convert to fraction form
    809,727/1,213,761.06 = 336,687/x
  3. Step 3: Cross multiply
    809,727x = 1,213,761.06 × 336,687
  4. Step 4: Simplify right side
    809,727x = 408,657,570,008.22
  5. Step 5: Solve for x
    x = 408,657,570,008.22/809,727
  6. Step 6: Final answer
    x = 504,685.62

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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.