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Finding the Fourth Proportional to 494,604.85, 682,337.91 and 290,563.69

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Solution

The fourth proportional to 494,604.85, 682,337.91 and 290,563.69 is: 400,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,604.85 : 682,337.91 = 290,563.69 : x
  2. Step 2: Convert to fraction form
    494,604.85/682,337.91 = 290,563.69/x
  3. Step 3: Cross multiply
    494,604.85x = 682,337.91 × 290,563.69
  4. Step 4: Simplify right side
    494,604.85x = 198,262,620,956.49
  5. Step 5: Solve for x
    x = 198,262,620,956.49/494,604.85
  6. Step 6: Final answer
    x = 400,850.54

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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.