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Finding the Fourth Proportional to 589.55, 814.60 and 484.55

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Solution

The fourth proportional to 589.55, 814.60 and 484.55 is: 669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.55 : 814.60 = 484.55 : x
  2. Step 2: Convert to fraction form
    589.55/814.60 = 484.55/x
  3. Step 3: Cross multiply
    589.55x = 814.60 × 484.55
  4. Step 4: Simplify right side
    589.55x = 394,716.09
  5. Step 5: Solve for x
    x = 394,716.09/589.55
  6. Step 6: Final answer
    x = 669.53

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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.