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Finding the Fourth Proportional to 483,906.97, 667,829.02 and 290,321.96

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Solution

The fourth proportional to 483,906.97, 667,829.02 and 290,321.96 is: 400,666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,906.97 : 667,829.02 = 290,321.96 : x
  2. Step 2: Convert to fraction form
    483,906.97/667,829.02 = 290,321.96/x
  3. Step 3: Cross multiply
    483,906.97x = 667,829.02 × 290,321.96
  4. Step 4: Simplify right side
    483,906.97x = 193,885,430,031.28
  5. Step 5: Solve for x
    x = 193,885,430,031.28/483,906.97
  6. Step 6: Final answer
    x = 400,666.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.