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Finding the Third Proportional to 508,491 and 690,594.75

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Solution

The third proportional to 508,491 and 690,594.75 is: 937,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,491 : 690,594.75 = 690,594.75 : x
  2. Step 2: Convert to fraction form
    508,491/690,594.75 = 690,594.75/x
  3. Step 3: Cross multiply
    508,491x = 690,594.75 × 690,594.75
  4. Step 4: Simplify right side
    508,491x = 476,921,108,727.56
  5. Step 5: Solve for x
    x = 476,921,108,727.56/508,491
  6. Step 6: Final answer
    x = 937,914.55

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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.