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Finding the Fourth Proportional to 650.53, 980.56 and 612.89

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Solution

The fourth proportional to 650.53, 980.56 and 612.89 is: 923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.53 : 980.56 = 612.89 : x
  2. Step 2: Convert to fraction form
    650.53/980.56 = 612.89/x
  3. Step 3: Cross multiply
    650.53x = 980.56 × 612.89
  4. Step 4: Simplify right side
    650.53x = 600,970.52
  5. Step 5: Solve for x
    x = 600,970.52/650.53
  6. Step 6: Final answer
    x = 923.82

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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.