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Finding the Fourth Proportional to 531.08, 796.62 and 423.08

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Solution

The fourth proportional to 531.08, 796.62 and 423.08 is: 634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.08 : 796.62 = 423.08 : x
  2. Step 2: Convert to fraction form
    531.08/796.62 = 423.08/x
  3. Step 3: Cross multiply
    531.08x = 796.62 × 423.08
  4. Step 4: Simplify right side
    531.08x = 337,033.99
  5. Step 5: Solve for x
    x = 337,033.99/531.08
  6. Step 6: Final answer
    x = 634.62

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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.