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Finding the Third Proportional to 503,120 and 747,831

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Solution

The third proportional to 503,120 and 747,831 is: 1,111,566.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,120 : 747,831 = 747,831 : x
  2. Step 2: Convert to fraction form
    503,120/747,831 = 747,831/x
  3. Step 3: Cross multiply
    503,120x = 747,831 × 747,831
  4. Step 4: Simplify right side
    503,120x = 559,251,204,561
  5. Step 5: Solve for x
    x = 559,251,204,561/503,120
  6. Step 6: Final answer
    x = 1,111,566.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.