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Finding the Fourth Proportional to 489,627.36, 675,734.31 and 274,768.27

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Solution

The fourth proportional to 489,627.36, 675,734.31 and 274,768.27 is: 379,207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,627.36 : 675,734.31 = 274,768.27 : x
  2. Step 2: Convert to fraction form
    489,627.36/675,734.31 = 274,768.27/x
  3. Step 3: Cross multiply
    489,627.36x = 675,734.31 × 274,768.27
  4. Step 4: Simplify right side
    489,627.36x = 185,670,345,649.01
  5. Step 5: Solve for x
    x = 185,670,345,649.01/489,627.36
  6. Step 6: Final answer
    x = 379,207.46

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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.