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Finding the Third Proportional to 455,487.75 and 648,850.50

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Solution

The third proportional to 455,487.75 and 648,850.50 is: 924,299.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,487.75 : 648,850.50 = 648,850.50 : x
  2. Step 2: Convert to fraction form
    455,487.75/648,850.50 = 648,850.50/x
  3. Step 3: Cross multiply
    455,487.75x = 648,850.50 × 648,850.50
  4. Step 4: Simplify right side
    455,487.75x = 421,006,971,350.25
  5. Step 5: Solve for x
    x = 421,006,971,350.25/455,487.75
  6. Step 6: Final answer
    x = 924,299.22

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.