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Finding the Fourth Proportional to 494,777.72, 682,793.34 and 279,913.34

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Solution

The fourth proportional to 494,777.72, 682,793.34 and 279,913.34 is: 386,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,777.72 : 682,793.34 = 279,913.34 : x
  2. Step 2: Convert to fraction form
    494,777.72/682,793.34 = 279,913.34/x
  3. Step 3: Cross multiply
    494,777.72x = 682,793.34 × 279,913.34
  4. Step 4: Simplify right side
    494,777.72x = 191,122,964,329.16
  5. Step 5: Solve for x
    x = 191,122,964,329.16/494,777.72
  6. Step 6: Final answer
    x = 386,280.46

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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.