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Finding the Fourth Proportional to 984.57, 1,475.94 and 334.85

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Solution

The fourth proportional to 984.57, 1,475.94 and 334.85 is: 501.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.57 : 1,475.94 = 334.85 : x
  2. Step 2: Convert to fraction form
    984.57/1,475.94 = 334.85/x
  3. Step 3: Cross multiply
    984.57x = 1,475.94 × 334.85
  4. Step 4: Simplify right side
    984.57x = 494,222.20
  5. Step 5: Solve for x
    x = 494,222.20/984.57
  6. Step 6: Final answer
    x = 501.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.