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Finding the Fourth Proportional to 415,067.93, 622,602.06 and 320,436.27

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Solution

The fourth proportional to 415,067.93, 622,602.06 and 320,436.27 is: 480,654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,067.93 : 622,602.06 = 320,436.27 : x
  2. Step 2: Convert to fraction form
    415,067.93/622,602.06 = 320,436.27/x
  3. Step 3: Cross multiply
    415,067.93x = 622,602.06 × 320,436.27
  4. Step 4: Simplify right side
    415,067.93x = 199,504,281,800.72
  5. Step 5: Solve for x
    x = 199,504,281,800.72/415,067.93
  6. Step 6: Final answer
    x = 480,654.53

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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.