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Finding the Fourth Proportional to 594.56, 820.20 and 361.28

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Solution

The fourth proportional to 594.56, 820.20 and 361.28 is: 498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.56 : 820.20 = 361.28 : x
  2. Step 2: Convert to fraction form
    594.56/820.20 = 361.28/x
  3. Step 3: Cross multiply
    594.56x = 820.20 × 361.28
  4. Step 4: Simplify right side
    594.56x = 296,321.86
  5. Step 5: Solve for x
    x = 296,321.86/594.56
  6. Step 6: Final answer
    x = 498.39

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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.