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Finding the Third Proportional to 453,496 and 666,388

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Solution

The third proportional to 453,496 and 666,388 is: 979,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,496 : 666,388 = 666,388 : x
  2. Step 2: Convert to fraction form
    453,496/666,388 = 666,388/x
  3. Step 3: Cross multiply
    453,496x = 666,388 × 666,388
  4. Step 4: Simplify right side
    453,496x = 444,072,966,544
  5. Step 5: Solve for x
    x = 444,072,966,544/453,496
  6. Step 6: Final answer
    x = 979,221.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.