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Finding the Third Proportional to 438,358.50 and 660,433.50

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Solution

The third proportional to 438,358.50 and 660,433.50 is: 995,013.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,358.50 : 660,433.50 = 660,433.50 : x
  2. Step 2: Convert to fraction form
    438,358.50/660,433.50 = 660,433.50/x
  3. Step 3: Cross multiply
    438,358.50x = 660,433.50 × 660,433.50
  4. Step 4: Simplify right side
    438,358.50x = 436,172,407,922.25
  5. Step 5: Solve for x
    x = 436,172,407,922.25/438,358.50
  6. Step 6: Final answer
    x = 995,013.00

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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.