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Finding the Third Proportional to 609,723.50 and 905,740.50

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Solution

The third proportional to 609,723.50 and 905,740.50 is: 1,345,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,723.50 : 905,740.50 = 905,740.50 : x
  2. Step 2: Convert to fraction form
    609,723.50/905,740.50 = 905,740.50/x
  3. Step 3: Cross multiply
    609,723.50x = 905,740.50 × 905,740.50
  4. Step 4: Simplify right side
    609,723.50x = 820,365,853,340.25
  5. Step 5: Solve for x
    x = 820,365,853,340.25/609,723.50
  6. Step 6: Final answer
    x = 1,345,471.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.