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Finding the Fourth Proportional to 532.66, 798.28 and 394.59

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Solution

The fourth proportional to 532.66, 798.28 and 394.59 is: 591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.66 : 798.28 = 394.59 : x
  2. Step 2: Convert to fraction form
    532.66/798.28 = 394.59/x
  3. Step 3: Cross multiply
    532.66x = 798.28 × 394.59
  4. Step 4: Simplify right side
    532.66x = 314,993.31
  5. Step 5: Solve for x
    x = 314,993.31/532.66
  6. Step 6: Final answer
    x = 591.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.