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Finding the Fourth Proportional to 773.41, 1,159.05 and 512.99

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Solution

The fourth proportional to 773.41, 1,159.05 and 512.99 is: 768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.41 : 1,159.05 = 512.99 : x
  2. Step 2: Convert to fraction form
    773.41/1,159.05 = 512.99/x
  3. Step 3: Cross multiply
    773.41x = 1,159.05 × 512.99
  4. Step 4: Simplify right side
    773.41x = 594,581.06
  5. Step 5: Solve for x
    x = 594,581.06/773.41
  6. Step 6: Final answer
    x = 768.78

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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.