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Finding the Third Proportional to 1,397,907 and 2,209,515.75

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Solution

The third proportional to 1,397,907 and 2,209,515.75 is: 3,492,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,907 : 2,209,515.75 = 2,209,515.75 : x
  2. Step 2: Convert to fraction form
    1,397,907/2,209,515.75 = 2,209,515.75/x
  3. Step 3: Cross multiply
    1,397,907x = 2,209,515.75 × 2,209,515.75
  4. Step 4: Simplify right side
    1,397,907x = 4,881,959,849,498.06
  5. Step 5: Solve for x
    x = 4,881,959,849,498.06/1,397,907
  6. Step 6: Final answer
    x = 3,492,335.22

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.