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Finding the Third Proportional to 638,638.50 and 1,064,351.25

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Solution

The third proportional to 638,638.50 and 1,064,351.25 is: 1,773,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,638.50 : 1,064,351.25 = 1,064,351.25 : x
  2. Step 2: Convert to fraction form
    638,638.50/1,064,351.25 = 1,064,351.25/x
  3. Step 3: Cross multiply
    638,638.50x = 1,064,351.25 × 1,064,351.25
  4. Step 4: Simplify right side
    638,638.50x = 1,132,843,583,376.56
  5. Step 5: Solve for x
    x = 1,132,843,583,376.56/638,638.50
  6. Step 6: Final answer
    x = 1,773,841.67

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.