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Finding the Third Proportional to 643,701.94 and 945,847.13

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Solution

The third proportional to 643,701.94 and 945,847.13 is: 1,389,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,701.94 : 945,847.13 = 945,847.13 : x
  2. Step 2: Convert to fraction form
    643,701.94/945,847.13 = 945,847.13/x
  3. Step 3: Cross multiply
    643,701.94x = 945,847.13 × 945,847.13
  4. Step 4: Simplify right side
    643,701.94x = 894,626,783,870.77
  5. Step 5: Solve for x
    x = 894,626,783,870.77/643,701.94
  6. Step 6: Final answer
    x = 1,389,815.27

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.