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Finding the Fourth Proportional to 605.73, 837.04 and 515.95

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Solution

The fourth proportional to 605.73, 837.04 and 515.95 is: 712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.73 : 837.04 = 515.95 : x
  2. Step 2: Convert to fraction form
    605.73/837.04 = 515.95/x
  3. Step 3: Cross multiply
    605.73x = 837.04 × 515.95
  4. Step 4: Simplify right side
    605.73x = 431,873.08
  5. Step 5: Solve for x
    x = 431,873.08/605.73
  6. Step 6: Final answer
    x = 712.98

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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.