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Finding the Fourth Proportional to 594.38, 820.17 and 328.79

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Solution

The fourth proportional to 594.38, 820.17 and 328.79 is: 453.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.38 : 820.17 = 328.79 : x
  2. Step 2: Convert to fraction form
    594.38/820.17 = 328.79/x
  3. Step 3: Cross multiply
    594.38x = 820.17 × 328.79
  4. Step 4: Simplify right side
    594.38x = 269,659.59
  5. Step 5: Solve for x
    x = 269,659.59/594.38
  6. Step 6: Final answer
    x = 453.69

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1.5x scale

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.