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Finding the Third Proportional to 705,253.50 and 990,985.50

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Solution

The third proportional to 705,253.50 and 990,985.50 is: 1,392,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,253.50 : 990,985.50 = 990,985.50 : x
  2. Step 2: Convert to fraction form
    705,253.50/990,985.50 = 990,985.50/x
  3. Step 3: Cross multiply
    705,253.50x = 990,985.50 × 990,985.50
  4. Step 4: Simplify right side
    705,253.50x = 982,052,261,210.25
  5. Step 5: Solve for x
    x = 982,052,261,210.25/705,253.50
  6. Step 6: Final answer
    x = 1,392,481.23

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.