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Finding the Fourth Proportional to 603.18, 832.62 and 518.82

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Solution

The fourth proportional to 603.18, 832.62 and 518.82 is: 716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.18 : 832.62 = 518.82 : x
  2. Step 2: Convert to fraction form
    603.18/832.62 = 518.82/x
  3. Step 3: Cross multiply
    603.18x = 832.62 × 518.82
  4. Step 4: Simplify right side
    603.18x = 431,979.91
  5. Step 5: Solve for x
    x = 431,979.91/603.18
  6. Step 6: Final answer
    x = 716.17

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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.