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Finding the Fourth Proportional to 878,003.94, 1,317,131.43 and 270,843.54

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Solution

The fourth proportional to 878,003.94, 1,317,131.43 and 270,843.54 is: 406,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,003.94 : 1,317,131.43 = 270,843.54 : x
  2. Step 2: Convert to fraction form
    878,003.94/1,317,131.43 = 270,843.54/x
  3. Step 3: Cross multiply
    878,003.94x = 1,317,131.43 × 270,843.54
  4. Step 4: Simplify right side
    878,003.94x = 356,736,539,146.46
  5. Step 5: Solve for x
    x = 356,736,539,146.46/878,003.94
  6. Step 6: Final answer
    x = 406,304.03

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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.