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Finding the Third Proportional to 379,750 and 830,430

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Solution

The third proportional to 379,750 and 830,430 is: 1,815,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,750 : 830,430 = 830,430 : x
  2. Step 2: Convert to fraction form
    379,750/830,430 = 830,430/x
  3. Step 3: Cross multiply
    379,750x = 830,430 × 830,430
  4. Step 4: Simplify right side
    379,750x = 689,613,984,900
  5. Step 5: Solve for x
    x = 689,613,984,900/379,750
  6. Step 6: Final answer
    x = 1,815,968.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.