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Finding the Fourth Proportional to 650.37, 980.46 and 608.61

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Solution

The fourth proportional to 650.37, 980.46 and 608.61 is: 917.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.37 : 980.46 = 608.61 : x
  2. Step 2: Convert to fraction form
    650.37/980.46 = 608.61/x
  3. Step 3: Cross multiply
    650.37x = 980.46 × 608.61
  4. Step 4: Simplify right side
    650.37x = 596,717.76
  5. Step 5: Solve for x
    x = 596,717.76/650.37
  6. Step 6: Final answer
    x = 917.51

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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.