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Finding the Third Proportional to 611,811 and 1,312,167

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Solution

The third proportional to 611,811 and 1,312,167 is: 2,814,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,811 : 1,312,167 = 1,312,167 : x
  2. Step 2: Convert to fraction form
    611,811/1,312,167 = 1,312,167/x
  3. Step 3: Cross multiply
    611,811x = 1,312,167 × 1,312,167
  4. Step 4: Simplify right side
    611,811x = 1,721,782,235,889
  5. Step 5: Solve for x
    x = 1,721,782,235,889/611,811
  6. Step 6: Final answer
    x = 2,814,238.77

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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.