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Finding the Third Proportional to 399,507.19 and 855,219.52

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Solution

The third proportional to 399,507.19 and 855,219.52 is: 1,830,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,507.19 : 855,219.52 = 855,219.52 : x
  2. Step 2: Convert to fraction form
    399,507.19/855,219.52 = 855,219.52/x
  3. Step 3: Cross multiply
    399,507.19x = 855,219.52 × 855,219.52
  4. Step 4: Simplify right side
    399,507.19x = 731,400,419,905.86
  5. Step 5: Solve for x
    x = 731,400,419,905.86/399,507.19
  6. Step 6: Final answer
    x = 1,830,756.60

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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.