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Finding the Fourth Proportional to 494,210.80, 682,022.82 and 279,351.64

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Solution

The fourth proportional to 494,210.80, 682,022.82 and 279,351.64 is: 385,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,210.80 : 682,022.82 = 279,351.64 : x
  2. Step 2: Convert to fraction form
    494,210.80/682,022.82 = 279,351.64/x
  3. Step 3: Cross multiply
    494,210.80x = 682,022.82 × 279,351.64
  4. Step 4: Simplify right side
    494,210.80x = 190,524,193,284.43
  5. Step 5: Solve for x
    x = 190,524,193,284.43/494,210.80
  6. Step 6: Final answer
    x = 385,512.00

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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.