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Finding the Third Proportional to 473,489 and 637,939

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Solution

The third proportional to 473,489 and 637,939 is: 859,505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,489 : 637,939 = 637,939 : x
  2. Step 2: Convert to fraction form
    473,489/637,939 = 637,939/x
  3. Step 3: Cross multiply
    473,489x = 637,939 × 637,939
  4. Step 4: Simplify right side
    473,489x = 406,966,167,721
  5. Step 5: Solve for x
    x = 406,966,167,721/473,489
  6. Step 6: Final answer
    x = 859,505.01

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.