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Finding the Third Proportional to 508,490.72 and 690,593.34

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Solution

The third proportional to 508,490.72 and 690,593.34 is: 937,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,490.72 : 690,593.34 = 690,593.34 : x
  2. Step 2: Convert to fraction form
    508,490.72/690,593.34 = 690,593.34/x
  3. Step 3: Cross multiply
    508,490.72x = 690,593.34 × 690,593.34
  4. Step 4: Simplify right side
    508,490.72x = 476,919,166,431.81
  5. Step 5: Solve for x
    x = 476,919,166,431.81/508,490.72
  6. Step 6: Final answer
    x = 937,911.25

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.