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Finding the Fourth Proportional to 577.68, 795.18 and 517.70

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Solution

The fourth proportional to 577.68, 795.18 and 517.70 is: 712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.68 : 795.18 = 517.70 : x
  2. Step 2: Convert to fraction form
    577.68/795.18 = 517.70/x
  3. Step 3: Cross multiply
    577.68x = 795.18 × 517.70
  4. Step 4: Simplify right side
    577.68x = 411,664.69
  5. Step 5: Solve for x
    x = 411,664.69/577.68
  6. Step 6: Final answer
    x = 712.62

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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.