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Finding the Fourth Proportional to 515.29, 773.40 and 460.36

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Solution

The fourth proportional to 515.29, 773.40 and 460.36 is: 690.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.29 : 773.40 = 460.36 : x
  2. Step 2: Convert to fraction form
    515.29/773.40 = 460.36/x
  3. Step 3: Cross multiply
    515.29x = 773.40 × 460.36
  4. Step 4: Simplify right side
    515.29x = 356,042.42
  5. Step 5: Solve for x
    x = 356,042.42/515.29
  6. Step 6: Final answer
    x = 690.96

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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.