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Finding the Third Proportional to 288,780 and 448,878

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Solution

The third proportional to 288,780 and 448,878 is: 697,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,780 : 448,878 = 448,878 : x
  2. Step 2: Convert to fraction form
    288,780/448,878 = 448,878/x
  3. Step 3: Cross multiply
    288,780x = 448,878 × 448,878
  4. Step 4: Simplify right side
    288,780x = 201,491,458,884
  5. Step 5: Solve for x
    x = 201,491,458,884/288,780
  6. Step 6: Final answer
    x = 697,733.43

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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.