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Finding the Fourth Proportional to 532.10, 796.37 and 390.62

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Solution

The fourth proportional to 532.10, 796.37 and 390.62 is: 584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.10 : 796.37 = 390.62 : x
  2. Step 2: Convert to fraction form
    532.10/796.37 = 390.62/x
  3. Step 3: Cross multiply
    532.10x = 796.37 × 390.62
  4. Step 4: Simplify right side
    532.10x = 311,072.11
  5. Step 5: Solve for x
    x = 311,072.11/532.10
  6. Step 6: Final answer
    x = 584.62

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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.