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Finding the Third Proportional to 1,689,273.56 and 3,985,999.88

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Solution

The third proportional to 1,689,273.56 and 3,985,999.88 is: 9,405,341.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,273.56 : 3,985,999.88 = 3,985,999.88 : x
  2. Step 2: Convert to fraction form
    1,689,273.56/3,985,999.88 = 3,985,999.88/x
  3. Step 3: Cross multiply
    1,689,273.56x = 3,985,999.88 × 3,985,999.88
  4. Step 4: Simplify right side
    1,689,273.56x = 15,888,195,003,500.02
  5. Step 5: Solve for x
    x = 15,888,195,003,500.02/1,689,273.56
  6. Step 6: Final answer
    x = 9,405,341.65

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.