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Finding the Third Proportional to 611,817 and 1,312,179

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Solution

The third proportional to 611,817 and 1,312,179 is: 2,814,262.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,817 : 1,312,179 = 1,312,179 : x
  2. Step 2: Convert to fraction form
    611,817/1,312,179 = 1,312,179/x
  3. Step 3: Cross multiply
    611,817x = 1,312,179 × 1,312,179
  4. Step 4: Simplify right side
    611,817x = 1,721,813,728,041
  5. Step 5: Solve for x
    x = 1,721,813,728,041/611,817
  6. Step 6: Final answer
    x = 2,814,262.64

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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.