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Finding the Fourth Proportional to 530.52, 790.11 and 499.11

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Solution

The fourth proportional to 530.52, 790.11 and 499.11 is: 743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.52 : 790.11 = 499.11 : x
  2. Step 2: Convert to fraction form
    530.52/790.11 = 499.11/x
  3. Step 3: Cross multiply
    530.52x = 790.11 × 499.11
  4. Step 4: Simplify right side
    530.52x = 394,351.80
  5. Step 5: Solve for x
    x = 394,351.80/530.52
  6. Step 6: Final answer
    x = 743.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.