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Finding the Fourth Proportional to 494,740.65, 682,729.50 and 276,951.90

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Solution

The fourth proportional to 494,740.65, 682,729.50 and 276,951.90 is: 382,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,740.65 : 682,729.50 = 276,951.90 : x
  2. Step 2: Convert to fraction form
    494,740.65/682,729.50 = 276,951.90/x
  3. Step 3: Cross multiply
    494,740.65x = 682,729.50 × 276,951.90
  4. Step 4: Simplify right side
    494,740.65x = 189,083,232,211.05
  5. Step 5: Solve for x
    x = 189,083,232,211.05/494,740.65
  6. Step 6: Final answer
    x = 382,186.57

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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.