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Finding the Fourth Proportional to 489,843.36, 675,947.16 and 275,016.24

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Solution

The fourth proportional to 489,843.36, 675,947.16 and 275,016.24 is: 379,501.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,843.36 : 675,947.16 = 275,016.24 : x
  2. Step 2: Convert to fraction form
    489,843.36/675,947.16 = 275,016.24/x
  3. Step 3: Cross multiply
    489,843.36x = 675,947.16 × 275,016.24
  4. Step 4: Simplify right side
    489,843.36x = 185,896,446,381.88
  5. Step 5: Solve for x
    x = 185,896,446,381.88/489,843.36
  6. Step 6: Final answer
    x = 379,501.82

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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.