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Finding the Fourth Proportional to 650.03, 979.82 and 612.39

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Solution

The fourth proportional to 650.03, 979.82 and 612.39 is: 923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.03 : 979.82 = 612.39 : x
  2. Step 2: Convert to fraction form
    650.03/979.82 = 612.39/x
  3. Step 3: Cross multiply
    650.03x = 979.82 × 612.39
  4. Step 4: Simplify right side
    650.03x = 600,028.91
  5. Step 5: Solve for x
    x = 600,028.91/650.03
  6. Step 6: Final answer
    x = 923.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.