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Finding the Third Proportional to 747,700 and 1,121,275

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Solution

The third proportional to 747,700 and 1,121,275 is: 1,681,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,700 : 1,121,275 = 1,121,275 : x
  2. Step 2: Convert to fraction form
    747,700/1,121,275 = 1,121,275/x
  3. Step 3: Cross multiply
    747,700x = 1,121,275 × 1,121,275
  4. Step 4: Simplify right side
    747,700x = 1,257,257,625,625
  5. Step 5: Solve for x
    x = 1,257,257,625,625/747,700
  6. Step 6: Final answer
    x = 1,681,500.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.