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Finding the Third Proportional to 305,288 and 448,791

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Solution

The third proportional to 305,288 and 448,791 is: 659,748.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,288 : 448,791 = 448,791 : x
  2. Step 2: Convert to fraction form
    305,288/448,791 = 448,791/x
  3. Step 3: Cross multiply
    305,288x = 448,791 × 448,791
  4. Step 4: Simplify right side
    305,288x = 201,413,361,681
  5. Step 5: Solve for x
    x = 201,413,361,681/305,288
  6. Step 6: Final answer
    x = 659,748.70

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.