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Finding the Fourth Proportional to 548,718.10, 823,077.15 and 489,231.70

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Solution

The fourth proportional to 548,718.10, 823,077.15 and 489,231.70 is: 733,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,718.10 : 823,077.15 = 489,231.70 : x
  2. Step 2: Convert to fraction form
    548,718.10/823,077.15 = 489,231.70/x
  3. Step 3: Cross multiply
    548,718.10x = 823,077.15 × 489,231.70
  4. Step 4: Simplify right side
    548,718.10x = 402,675,433,325.66
  5. Step 5: Solve for x
    x = 402,675,433,325.66/548,718.10
  6. Step 6: Final answer
    x = 733,847.55

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.