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Finding the Third Proportional to 425,433.94 and 918,553.71

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Solution

The third proportional to 425,433.94 and 918,553.71 is: 1,983,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,433.94 : 918,553.71 = 918,553.71 : x
  2. Step 2: Convert to fraction form
    425,433.94/918,553.71 = 918,553.71/x
  3. Step 3: Cross multiply
    425,433.94x = 918,553.71 × 918,553.71
  4. Step 4: Simplify right side
    425,433.94x = 843,740,919,877.05
  5. Step 5: Solve for x
    x = 843,740,919,877.05/425,433.94
  6. Step 6: Final answer
    x = 1,983,247.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.