Home / 489,086.97-674,931.38-274,226.37

Finding the Fourth Proportional to 489,086.97, 674,931.38 and 274,226.37

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Solution

The fourth proportional to 489,086.97, 674,931.38 and 274,226.37 is: 378,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,086.97 : 674,931.38 = 274,226.37 : x
  2. Step 2: Convert to fraction form
    489,086.97/674,931.38 = 274,226.37/x
  3. Step 3: Cross multiply
    489,086.97x = 674,931.38 × 274,226.37
  4. Step 4: Simplify right side
    489,086.97x = 185,083,980,965.36
  5. Step 5: Solve for x
    x = 185,083,980,965.36/489,086.97
  6. Step 6: Final answer
    x = 378,427.54

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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.