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Finding the Fourth Proportional to 530.60, 796.28 and 393.23

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Solution

The fourth proportional to 530.60, 796.28 and 393.23 is: 590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.60 : 796.28 = 393.23 : x
  2. Step 2: Convert to fraction form
    530.60/796.28 = 393.23/x
  3. Step 3: Cross multiply
    530.60x = 796.28 × 393.23
  4. Step 4: Simplify right side
    530.60x = 313,123.42
  5. Step 5: Solve for x
    x = 313,123.42/530.60
  6. Step 6: Final answer
    x = 590.13

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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.