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Finding the Third Proportional to 455,217 and 655,759.50

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Solution

The third proportional to 455,217 and 655,759.50 is: 944,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,217 : 655,759.50 = 655,759.50 : x
  2. Step 2: Convert to fraction form
    455,217/655,759.50 = 655,759.50/x
  3. Step 3: Cross multiply
    455,217x = 655,759.50 × 655,759.50
  4. Step 4: Simplify right side
    455,217x = 430,020,521,840.25
  5. Step 5: Solve for x
    x = 430,020,521,840.25/455,217
  6. Step 6: Final answer
    x = 944,649.52

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.