Home / 685,073.82-1,027,709.16-211,796.10

Finding the Fourth Proportional to 685,073.82, 1,027,709.16 and 211,796.10

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Solution

The fourth proportional to 685,073.82, 1,027,709.16 and 211,796.10 is: 317,724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,073.82 : 1,027,709.16 = 211,796.10 : x
  2. Step 2: Convert to fraction form
    685,073.82/1,027,709.16 = 211,796.10/x
  3. Step 3: Cross multiply
    685,073.82x = 1,027,709.16 × 211,796.10
  4. Step 4: Simplify right side
    685,073.82x = 217,664,792,022.28
  5. Step 5: Solve for x
    x = 217,664,792,022.28/685,073.82
  6. Step 6: Final answer
    x = 317,724.58

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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.