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Finding the Third Proportional to 603,211.50 and 1,311,399

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Solution

The third proportional to 603,211.50 and 1,311,399 is: 2,851,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,211.50 : 1,311,399 = 1,311,399 : x
  2. Step 2: Convert to fraction form
    603,211.50/1,311,399 = 1,311,399/x
  3. Step 3: Cross multiply
    603,211.50x = 1,311,399 × 1,311,399
  4. Step 4: Simplify right side
    603,211.50x = 1,719,767,337,201
  5. Step 5: Solve for x
    x = 1,719,767,337,201/603,211.50
  6. Step 6: Final answer
    x = 2,851,018.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.