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Finding the Third Proportional to 810,121.50 and 910,723.50

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Solution

The third proportional to 810,121.50 and 910,723.50 is: 1,023,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,121.50 : 910,723.50 = 910,723.50 : x
  2. Step 2: Convert to fraction form
    810,121.50/910,723.50 = 910,723.50/x
  3. Step 3: Cross multiply
    810,121.50x = 910,723.50 × 910,723.50
  4. Step 4: Simplify right side
    810,121.50x = 829,417,293,452.25
  5. Step 5: Solve for x
    x = 829,417,293,452.25/810,121.50
  6. Step 6: Final answer
    x = 1,023,818.39

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.