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Finding the Third Proportional to 442,005.50 and 654,720.50

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Solution

The third proportional to 442,005.50 and 654,720.50 is: 969,804.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,005.50 : 654,720.50 = 654,720.50 : x
  2. Step 2: Convert to fraction form
    442,005.50/654,720.50 = 654,720.50/x
  3. Step 3: Cross multiply
    442,005.50x = 654,720.50 × 654,720.50
  4. Step 4: Simplify right side
    442,005.50x = 428,658,933,120.25
  5. Step 5: Solve for x
    x = 428,658,933,120.25/442,005.50
  6. Step 6: Final answer
    x = 969,804.52

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.