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Finding the Third Proportional to 289,788 and 614,460

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Solution

The third proportional to 289,788 and 614,460 is: 1,302,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,788 : 614,460 = 614,460 : x
  2. Step 2: Convert to fraction form
    289,788/614,460 = 614,460/x
  3. Step 3: Cross multiply
    289,788x = 614,460 × 614,460
  4. Step 4: Simplify right side
    289,788x = 377,561,091,600
  5. Step 5: Solve for x
    x = 377,561,091,600/289,788
  6. Step 6: Final answer
    x = 1,302,887.25

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.