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Finding the Third Proportional to 418,136 and 637,036

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Solution

The third proportional to 418,136 and 637,036 is: 970,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,136 : 637,036 = 637,036 : x
  2. Step 2: Convert to fraction form
    418,136/637,036 = 637,036/x
  3. Step 3: Cross multiply
    418,136x = 637,036 × 637,036
  4. Step 4: Simplify right side
    418,136x = 405,814,865,296
  5. Step 5: Solve for x
    x = 405,814,865,296/418,136
  6. Step 6: Final answer
    x = 970,533.19

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.