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Finding the Third Proportional to 643,313.25 and 946,255.50

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Solution

The third proportional to 643,313.25 and 946,255.50 is: 1,391,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,313.25 : 946,255.50 = 946,255.50 : x
  2. Step 2: Convert to fraction form
    643,313.25/946,255.50 = 946,255.50/x
  3. Step 3: Cross multiply
    643,313.25x = 946,255.50 × 946,255.50
  4. Step 4: Simplify right side
    643,313.25x = 895,399,471,280.25
  5. Step 5: Solve for x
    x = 895,399,471,280.25/643,313.25
  6. Step 6: Final answer
    x = 1,391,856.10

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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.