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Finding the Third Proportional to 691,132.50 and 1,081,818

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Solution

The third proportional to 691,132.50 and 1,081,818 is: 1,693,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,132.50 : 1,081,818 = 1,081,818 : x
  2. Step 2: Convert to fraction form
    691,132.50/1,081,818 = 1,081,818/x
  3. Step 3: Cross multiply
    691,132.50x = 1,081,818 × 1,081,818
  4. Step 4: Simplify right side
    691,132.50x = 1,170,330,185,124
  5. Step 5: Solve for x
    x = 1,170,330,185,124/691,132.50
  6. Step 6: Final answer
    x = 1,693,351.40

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.