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Finding the Fourth Proportional to 605.88, 835 and 495

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Solution

The fourth proportional to 605.88, 835 and 495 is: 682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.88 : 835 = 495 : x
  2. Step 2: Convert to fraction form
    605.88/835 = 495/x
  3. Step 3: Cross multiply
    605.88x = 835 × 495
  4. Step 4: Simplify right side
    605.88x = 413,325
  5. Step 5: Solve for x
    x = 413,325/605.88
  6. Step 6: Final answer
    x = 682.19

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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.