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Finding the Third Proportional to 399,026.25 and 875,655.56

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Solution

The third proportional to 399,026.25 and 875,655.56 is: 1,921,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,026.25 : 875,655.56 = 875,655.56 : x
  2. Step 2: Convert to fraction form
    399,026.25/875,655.56 = 875,655.56/x
  3. Step 3: Cross multiply
    399,026.25x = 875,655.56 × 875,655.56
  4. Step 4: Simplify right side
    399,026.25x = 766,772,664,137.19
  5. Step 5: Solve for x
    x = 766,772,664,137.19/399,026.25
  6. Step 6: Final answer
    x = 1,921,609.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.