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Finding the Fourth Proportional to 609.02, 911.48 and 510.62

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Solution

The fourth proportional to 609.02, 911.48 and 510.62 is: 764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.02 : 911.48 = 510.62 : x
  2. Step 2: Convert to fraction form
    609.02/911.48 = 510.62/x
  3. Step 3: Cross multiply
    609.02x = 911.48 × 510.62
  4. Step 4: Simplify right side
    609.02x = 465,419.92
  5. Step 5: Solve for x
    x = 465,419.92/609.02
  6. Step 6: Final answer
    x = 764.21

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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.