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Finding the Third Proportional to 357,720 and 738,120

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Solution

The third proportional to 357,720 and 738,120 is: 1,523,037.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,720 : 738,120 = 738,120 : x
  2. Step 2: Convert to fraction form
    357,720/738,120 = 738,120/x
  3. Step 3: Cross multiply
    357,720x = 738,120 × 738,120
  4. Step 4: Simplify right side
    357,720x = 544,821,134,400
  5. Step 5: Solve for x
    x = 544,821,134,400/357,720
  6. Step 6: Final answer
    x = 1,523,037.95

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.