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Finding the Fourth Proportional to 609.16, 911.84 and 492.63

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Solution

The fourth proportional to 609.16, 911.84 and 492.63 is: 737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.16 : 911.84 = 492.63 : x
  2. Step 2: Convert to fraction form
    609.16/911.84 = 492.63/x
  3. Step 3: Cross multiply
    609.16x = 911.84 × 492.63
  4. Step 4: Simplify right side
    609.16x = 449,199.74
  5. Step 5: Solve for x
    x = 449,199.74/609.16
  6. Step 6: Final answer
    x = 737.41

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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.