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Finding the Third Proportional to 360,099 and 786,639

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Solution

The third proportional to 360,099 and 786,639 is: 1,718,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,099 : 786,639 = 786,639 : x
  2. Step 2: Convert to fraction form
    360,099/786,639 = 786,639/x
  3. Step 3: Cross multiply
    360,099x = 786,639 × 786,639
  4. Step 4: Simplify right side
    360,099x = 618,800,916,321
  5. Step 5: Solve for x
    x = 618,800,916,321/360,099
  6. Step 6: Final answer
    x = 1,718,418.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.