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Finding the Third Proportional to 636,322.50 and 890,090.75

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Solution

The third proportional to 636,322.50 and 890,090.75 is: 1,245,062.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,322.50 : 890,090.75 = 890,090.75 : x
  2. Step 2: Convert to fraction form
    636,322.50/890,090.75 = 890,090.75/x
  3. Step 3: Cross multiply
    636,322.50x = 890,090.75 × 890,090.75
  4. Step 4: Simplify right side
    636,322.50x = 792,261,543,235.56
  5. Step 5: Solve for x
    x = 792,261,543,235.56/636,322.50
  6. Step 6: Final answer
    x = 1,245,062.91

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.