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Finding the Third Proportional to 491.75 and 884.50

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Solution

The third proportional to 491.75 and 884.50 is: 1,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.75 : 884.50 = 884.50 : x
  2. Step 2: Convert to fraction form
    491.75/884.50 = 884.50/x
  3. Step 3: Cross multiply
    491.75x = 884.50 × 884.50
  4. Step 4: Simplify right side
    491.75x = 782,340.25
  5. Step 5: Solve for x
    x = 782,340.25/491.75
  6. Step 6: Final answer
    x = 1,590.93

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.