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Finding the Third Proportional to 637,389 and 1,373,132.25

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Solution

The third proportional to 637,389 and 1,373,132.25 is: 2,958,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,389 : 1,373,132.25 = 1,373,132.25 : x
  2. Step 2: Convert to fraction form
    637,389/1,373,132.25 = 1,373,132.25/x
  3. Step 3: Cross multiply
    637,389x = 1,373,132.25 × 1,373,132.25
  4. Step 4: Simplify right side
    637,389x = 1,885,492,175,990.06
  5. Step 5: Solve for x
    x = 1,885,492,175,990.06/637,389
  6. Step 6: Final answer
    x = 2,958,149.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.