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Finding the Fourth Proportional to 481,997.47, 665,004.50 and 278,021.04

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Solution

The fourth proportional to 481,997.47, 665,004.50 and 278,021.04 is: 383,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,997.47 : 665,004.50 = 278,021.04 : x
  2. Step 2: Convert to fraction form
    481,997.47/665,004.50 = 278,021.04/x
  3. Step 3: Cross multiply
    481,997.47x = 665,004.50 × 278,021.04
  4. Step 4: Simplify right side
    481,997.47x = 184,885,242,694.68
  5. Step 5: Solve for x
    x = 184,885,242,694.68/481,997.47
  6. Step 6: Final answer
    x = 383,581.36

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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.