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Finding the Fourth Proportional to 489,883.44, 675,992.48 and 274,974.24

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Solution

The fourth proportional to 489,883.44, 675,992.48 and 274,974.24 is: 379,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,883.44 : 675,992.48 = 274,974.24 : x
  2. Step 2: Convert to fraction form
    489,883.44/675,992.48 = 274,974.24/x
  3. Step 3: Cross multiply
    489,883.44x = 675,992.48 × 274,974.24
  4. Step 4: Simplify right side
    489,883.44x = 185,880,518,433.72
  5. Step 5: Solve for x
    x = 185,880,518,433.72/489,883.44
  6. Step 6: Final answer
    x = 379,438.26

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1.5x scale

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.