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Finding the Third Proportional to 409,134 and 875,130

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Solution

The third proportional to 409,134 and 875,130 is: 1,871,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,134 : 875,130 = 875,130 : x
  2. Step 2: Convert to fraction form
    409,134/875,130 = 875,130/x
  3. Step 3: Cross multiply
    409,134x = 875,130 × 875,130
  4. Step 4: Simplify right side
    409,134x = 765,852,516,900
  5. Step 5: Solve for x
    x = 765,852,516,900/409,134
  6. Step 6: Final answer
    x = 1,871,886.76

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Why These Related Problems?

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