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Finding the Fourth Proportional to 419,458.77, 628,015.60 and 226,642.37

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Solution

The fourth proportional to 419,458.77, 628,015.60 and 226,642.37 is: 339,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,458.77 : 628,015.60 = 226,642.37 : x
  2. Step 2: Convert to fraction form
    419,458.77/628,015.60 = 226,642.37/x
  3. Step 3: Cross multiply
    419,458.77x = 628,015.60 × 226,642.37
  4. Step 4: Simplify right side
    419,458.77x = 142,334,944,984.41
  5. Step 5: Solve for x
    x = 142,334,944,984.41/419,458.77
  6. Step 6: Final answer
    x = 339,330.00

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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.