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Finding the Third Proportional to 384,205.50 and 617,313.38

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Solution

The third proportional to 384,205.50 and 617,313.38 is: 991,854.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,205.50 : 617,313.38 = 617,313.38 : x
  2. Step 2: Convert to fraction form
    384,205.50/617,313.38 = 617,313.38/x
  3. Step 3: Cross multiply
    384,205.50x = 617,313.38 × 617,313.38
  4. Step 4: Simplify right side
    384,205.50x = 381,075,802,953.89
  5. Step 5: Solve for x
    x = 381,075,802,953.89/384,205.50
  6. Step 6: Final answer
    x = 991,854.11

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.