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Finding the Third Proportional to 456,548.25 and 709,689

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Solution

The third proportional to 456,548.25 and 709,689 is: 1,103,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,548.25 : 709,689 = 709,689 : x
  2. Step 2: Convert to fraction form
    456,548.25/709,689 = 709,689/x
  3. Step 3: Cross multiply
    456,548.25x = 709,689 × 709,689
  4. Step 4: Simplify right side
    456,548.25x = 503,658,476,721
  5. Step 5: Solve for x
    x = 503,658,476,721/456,548.25
  6. Step 6: Final answer
    x = 1,103,187.84

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.