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Finding the Fourth Proportional to 455,270.80, 682,906.20 and 322,301.20

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Solution

The fourth proportional to 455,270.80, 682,906.20 and 322,301.20 is: 483,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,270.80 : 682,906.20 = 322,301.20 : x
  2. Step 2: Convert to fraction form
    455,270.80/682,906.20 = 322,301.20/x
  3. Step 3: Cross multiply
    455,270.80x = 682,906.20 × 322,301.20
  4. Step 4: Simplify right side
    455,270.80x = 220,101,487,747.44
  5. Step 5: Solve for x
    x = 220,101,487,747.44/455,270.80
  6. Step 6: Final answer
    x = 483,451.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.