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Finding the Fourth Proportional to 702,768.58, 969,836.97 and 396,943.36

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Solution

The fourth proportional to 702,768.58, 969,836.97 and 396,943.36 is: 547,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,768.58 : 969,836.97 = 396,943.36 : x
  2. Step 2: Convert to fraction form
    702,768.58/969,836.97 = 396,943.36/x
  3. Step 3: Cross multiply
    702,768.58x = 969,836.97 × 396,943.36
  4. Step 4: Simplify right side
    702,768.58x = 384,970,345,524.02
  5. Step 5: Solve for x
    x = 384,970,345,524.02/702,768.58
  6. Step 6: Final answer
    x = 547,791.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.