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Finding the Fourth Proportional to 589.58, 811.30 and 482.27

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Solution

The fourth proportional to 589.58, 811.30 and 482.27 is: 663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.58 : 811.30 = 482.27 : x
  2. Step 2: Convert to fraction form
    589.58/811.30 = 482.27/x
  3. Step 3: Cross multiply
    589.58x = 811.30 × 482.27
  4. Step 4: Simplify right side
    589.58x = 391,265.86
  5. Step 5: Solve for x
    x = 391,265.86/589.58
  6. Step 6: Final answer
    x = 663.64

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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.