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Finding the Third Proportional to 478,973 and 798,258

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Solution

The third proportional to 478,973 and 798,258 is: 1,330,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,973 : 798,258 = 798,258 : x
  2. Step 2: Convert to fraction form
    478,973/798,258 = 798,258/x
  3. Step 3: Cross multiply
    478,973x = 798,258 × 798,258
  4. Step 4: Simplify right side
    478,973x = 637,215,834,564
  5. Step 5: Solve for x
    x = 637,215,834,564/478,973
  6. Step 6: Final answer
    x = 1,330,379.45

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.