Home / 494,298.48-682,142.40-279,425.73

Finding the Fourth Proportional to 494,298.48, 682,142.40 and 279,425.73

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Solution

The fourth proportional to 494,298.48, 682,142.40 and 279,425.73 is: 385,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,298.48 : 682,142.40 = 279,425.73 : x
  2. Step 2: Convert to fraction form
    494,298.48/682,142.40 = 279,425.73/x
  3. Step 3: Cross multiply
    494,298.48x = 682,142.40 × 279,425.73
  4. Step 4: Simplify right side
    494,298.48x = 190,608,138,083.95
  5. Step 5: Solve for x
    x = 190,608,138,083.95/494,298.48
  6. Step 6: Final answer
    x = 385,613.44

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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.