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Finding the Fourth Proportional to 867,992.82, 1,197,879.48 and 486,016.26

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Solution

The fourth proportional to 867,992.82, 1,197,879.48 and 486,016.26 is: 670,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,992.82 : 1,197,879.48 = 486,016.26 : x
  2. Step 2: Convert to fraction form
    867,992.82/1,197,879.48 = 486,016.26/x
  3. Step 3: Cross multiply
    867,992.82x = 1,197,879.48 × 486,016.26
  4. Step 4: Simplify right side
    867,992.82x = 582,188,907,469.83
  5. Step 5: Solve for x
    x = 582,188,907,469.83/867,992.82
  6. Step 6: Final answer
    x = 670,730.09

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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.