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Finding the Fourth Proportional to 494,428.44, 682,324.62 and 279,600.50

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Solution

The fourth proportional to 494,428.44, 682,324.62 and 279,600.50 is: 385,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,428.44 : 682,324.62 = 279,600.50 : x
  2. Step 2: Convert to fraction form
    494,428.44/682,324.62 = 279,600.50/x
  3. Step 3: Cross multiply
    494,428.44x = 682,324.62 × 279,600.50
  4. Step 4: Simplify right side
    494,428.44x = 190,778,304,914.31
  5. Step 5: Solve for x
    x = 190,778,304,914.31/494,428.44
  6. Step 6: Final answer
    x = 385,856.25

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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.