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Finding the Fourth Proportional to 422,869.82, 634,846.02 and 363,279.54

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Solution

The fourth proportional to 422,869.82, 634,846.02 and 363,279.54 is: 545,384.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,869.82 : 634,846.02 = 363,279.54 : x
  2. Step 2: Convert to fraction form
    422,869.82/634,846.02 = 363,279.54/x
  3. Step 3: Cross multiply
    422,869.82x = 634,846.02 × 363,279.54
  4. Step 4: Simplify right side
    422,869.82x = 230,626,566,942.20
  5. Step 5: Solve for x
    x = 230,626,566,942.20/422,869.82
  6. Step 6: Final answer
    x = 545,384.31

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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.