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Finding the Third Proportional to 840.94 and 1,258.88

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Solution

The third proportional to 840.94 and 1,258.88 is: 1,884.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    840.94 : 1,258.88 = 1,258.88 : x
  2. Step 2: Convert to fraction form
    840.94/1,258.88 = 1,258.88/x
  3. Step 3: Cross multiply
    840.94x = 1,258.88 × 1,258.88
  4. Step 4: Simplify right side
    840.94x = 1,584,766.27
  5. Step 5: Solve for x
    x = 1,584,766.27/840.94
  6. Step 6: Final answer
    x = 1,884.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.