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Finding the Fourth Proportional to 483,679.50, 667,489.05 and 268,828.62

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Solution

The fourth proportional to 483,679.50, 667,489.05 and 268,828.62 is: 370,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,679.50 : 667,489.05 = 268,828.62 : x
  2. Step 2: Convert to fraction form
    483,679.50/667,489.05 = 268,828.62/x
  3. Step 3: Cross multiply
    483,679.50x = 667,489.05 × 268,828.62
  4. Step 4: Simplify right side
    483,679.50x = 179,440,160,176.61
  5. Step 5: Solve for x
    x = 179,440,160,176.61/483,679.50
  6. Step 6: Final answer
    x = 370,989.80

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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.