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Finding the Third Proportional to 788,207 and 1,639,315

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Solution

The third proportional to 788,207 and 1,639,315 is: 3,409,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,207 : 1,639,315 = 1,639,315 : x
  2. Step 2: Convert to fraction form
    788,207/1,639,315 = 1,639,315/x
  3. Step 3: Cross multiply
    788,207x = 1,639,315 × 1,639,315
  4. Step 4: Simplify right side
    788,207x = 2,687,353,669,225
  5. Step 5: Solve for x
    x = 2,687,353,669,225/788,207
  6. Step 6: Final answer
    x = 3,409,451.67

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.