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Finding the Third Proportional to 1,214,817.75 and 2,658,420

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Solution

The third proportional to 1,214,817.75 and 2,658,420 is: 5,817,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,817.75 : 2,658,420 = 2,658,420 : x
  2. Step 2: Convert to fraction form
    1,214,817.75/2,658,420 = 2,658,420/x
  3. Step 3: Cross multiply
    1,214,817.75x = 2,658,420 × 2,658,420
  4. Step 4: Simplify right side
    1,214,817.75x = 7,067,196,896,400
  5. Step 5: Solve for x
    x = 7,067,196,896,400/1,214,817.75
  6. Step 6: Final answer
    x = 5,817,495.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.