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Finding the Fourth Proportional to 594.12, 820.36 and 395.14

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Solution

The fourth proportional to 594.12, 820.36 and 395.14 is: 545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.12 : 820.36 = 395.14 : x
  2. Step 2: Convert to fraction form
    594.12/820.36 = 395.14/x
  3. Step 3: Cross multiply
    594.12x = 820.36 × 395.14
  4. Step 4: Simplify right side
    594.12x = 324,157.05
  5. Step 5: Solve for x
    x = 324,157.05/594.12
  6. Step 6: Final answer
    x = 545.61

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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.