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Finding the Third Proportional to 608.77 and 917.58

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Solution

The third proportional to 608.77 and 917.58 is: 1,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.77 : 917.58 = 917.58 : x
  2. Step 2: Convert to fraction form
    608.77/917.58 = 917.58/x
  3. Step 3: Cross multiply
    608.77x = 917.58 × 917.58
  4. Step 4: Simplify right side
    608.77x = 841,949.62
  5. Step 5: Solve for x
    x = 841,949.62/608.77
  6. Step 6: Final answer
    x = 1,383.04

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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.