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Finding the Third Proportional to 663,405.75 and 994,063.50

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Solution

The third proportional to 663,405.75 and 994,063.50 is: 1,489,529.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,405.75 : 994,063.50 = 994,063.50 : x
  2. Step 2: Convert to fraction form
    663,405.75/994,063.50 = 994,063.50/x
  3. Step 3: Cross multiply
    663,405.75x = 994,063.50 × 994,063.50
  4. Step 4: Simplify right side
    663,405.75x = 988,162,242,032.25
  5. Step 5: Solve for x
    x = 988,162,242,032.25/663,405.75
  6. Step 6: Final answer
    x = 1,489,529.21

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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.