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Finding the Fourth Proportional to 494,777, 682,785.78 and 268,430.60

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Solution

The fourth proportional to 494,777, 682,785.78 and 268,430.60 is: 370,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,777 : 682,785.78 = 268,430.60 : x
  2. Step 2: Convert to fraction form
    494,777/682,785.78 = 268,430.60/x
  3. Step 3: Cross multiply
    494,777x = 682,785.78 × 268,430.60
  4. Step 4: Simplify right side
    494,777x = 183,280,596,596.87
  5. Step 5: Solve for x
    x = 183,280,596,596.87/494,777
  6. Step 6: Final answer
    x = 370,430.71

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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.