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Finding the Third Proportional to 448,470 and 655,438.50

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Solution

The third proportional to 448,470 and 655,438.50 is: 957,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,470 : 655,438.50 = 655,438.50 : x
  2. Step 2: Convert to fraction form
    448,470/655,438.50 = 655,438.50/x
  3. Step 3: Cross multiply
    448,470x = 655,438.50 × 655,438.50
  4. Step 4: Simplify right side
    448,470x = 429,599,627,282.25
  5. Step 5: Solve for x
    x = 429,599,627,282.25/448,470
  6. Step 6: Final answer
    x = 957,922.78

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.