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Finding the Fourth Proportional to 494,383.96, 682,284.82 and 279,526.12

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Solution

The fourth proportional to 494,383.96, 682,284.82 and 279,526.12 is: 385,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,383.96 : 682,284.82 = 279,526.12 : x
  2. Step 2: Convert to fraction form
    494,383.96/682,284.82 = 279,526.12/x
  3. Step 3: Cross multiply
    494,383.96x = 682,284.82 × 279,526.12
  4. Step 4: Simplify right side
    494,383.96x = 190,716,428,469.50
  5. Step 5: Solve for x
    x = 190,716,428,469.50/494,383.96
  6. Step 6: Final answer
    x = 385,765.81

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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.