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Finding the Fourth Proportional to 501,026.80, 751,540.20 and 451,163.20

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Solution

The fourth proportional to 501,026.80, 751,540.20 and 451,163.20 is: 676,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,026.80 : 751,540.20 = 451,163.20 : x
  2. Step 2: Convert to fraction form
    501,026.80/751,540.20 = 451,163.20/x
  3. Step 3: Cross multiply
    501,026.80x = 751,540.20 × 451,163.20
  4. Step 4: Simplify right side
    501,026.80x = 339,067,281,560.64
  5. Step 5: Solve for x
    x = 339,067,281,560.64/501,026.80
  6. Step 6: Final answer
    x = 676,744.80

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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.