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Finding the Fourth Proportional to 605.03, 903.15 and 512.73

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Solution

The fourth proportional to 605.03, 903.15 and 512.73 is: 765.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.03 : 903.15 = 512.73 : x
  2. Step 2: Convert to fraction form
    605.03/903.15 = 512.73/x
  3. Step 3: Cross multiply
    605.03x = 903.15 × 512.73
  4. Step 4: Simplify right side
    605.03x = 463,072.10
  5. Step 5: Solve for x
    x = 463,072.10/605.03
  6. Step 6: Final answer
    x = 765.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.