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Finding the Third Proportional to 478,936.50 and 697,344.75

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Solution

The third proportional to 478,936.50 and 697,344.75 is: 1,015,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,936.50 : 697,344.75 = 697,344.75 : x
  2. Step 2: Convert to fraction form
    478,936.50/697,344.75 = 697,344.75/x
  3. Step 3: Cross multiply
    478,936.50x = 697,344.75 × 697,344.75
  4. Step 4: Simplify right side
    478,936.50x = 486,289,700,352.56
  5. Step 5: Solve for x
    x = 486,289,700,352.56/478,936.50
  6. Step 6: Final answer
    x = 1,015,353.18

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.