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Finding the Third Proportional to 1,187,288 and 2,640,328

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Solution

The third proportional to 1,187,288 and 2,640,328 is: 5,871,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,288 : 2,640,328 = 2,640,328 : x
  2. Step 2: Convert to fraction form
    1,187,288/2,640,328 = 2,640,328/x
  3. Step 3: Cross multiply
    1,187,288x = 2,640,328 × 2,640,328
  4. Step 4: Simplify right side
    1,187,288x = 6,971,331,947,584
  5. Step 5: Solve for x
    x = 6,971,331,947,584/1,187,288
  6. Step 6: Final answer
    x = 5,871,643.57

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.