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Finding the Third Proportional to 432,115.50 and 654,145.50

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Solution

The third proportional to 432,115.50 and 654,145.50 is: 990,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,115.50 : 654,145.50 = 654,145.50 : x
  2. Step 2: Convert to fraction form
    432,115.50/654,145.50 = 654,145.50/x
  3. Step 3: Cross multiply
    432,115.50x = 654,145.50 × 654,145.50
  4. Step 4: Simplify right side
    432,115.50x = 427,906,335,170.25
  5. Step 5: Solve for x
    x = 427,906,335,170.25/432,115.50
  6. Step 6: Final answer
    x = 990,259.17

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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.