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Finding the Third Proportional to 657,855 and 1,417,221

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Solution

The third proportional to 657,855 and 1,417,221 is: 3,053,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,855 : 1,417,221 = 1,417,221 : x
  2. Step 2: Convert to fraction form
    657,855/1,417,221 = 1,417,221/x
  3. Step 3: Cross multiply
    657,855x = 1,417,221 × 1,417,221
  4. Step 4: Simplify right side
    657,855x = 2,008,515,362,841
  5. Step 5: Solve for x
    x = 2,008,515,362,841/657,855
  6. Step 6: Final answer
    x = 3,053,127.76

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.