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Finding the Third Proportional to 437,400 and 661,972.50

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Solution

The third proportional to 437,400 and 661,972.50 is: 1,001,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,400 : 661,972.50 = 661,972.50 : x
  2. Step 2: Convert to fraction form
    437,400/661,972.50 = 661,972.50/x
  3. Step 3: Cross multiply
    437,400x = 661,972.50 × 661,972.50
  4. Step 4: Simplify right side
    437,400x = 438,207,590,756.25
  5. Step 5: Solve for x
    x = 438,207,590,756.25/437,400
  6. Step 6: Final answer
    x = 1,001,846.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.