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Finding the Fourth Proportional to 494,303.56, 682,168.30 and 279,463.62

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Solution

The fourth proportional to 494,303.56, 682,168.30 and 279,463.62 is: 385,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,303.56 : 682,168.30 = 279,463.62 : x
  2. Step 2: Convert to fraction form
    494,303.56/682,168.30 = 279,463.62/x
  3. Step 3: Cross multiply
    494,303.56x = 682,168.30 × 279,463.62
  4. Step 4: Simplify right side
    494,303.56x = 190,641,222,567.25
  5. Step 5: Solve for x
    x = 190,641,222,567.25/494,303.56
  6. Step 6: Final answer
    x = 385,676.41

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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.