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Finding the Fourth Proportional to 422,881.92, 634,864.12 and 363,291.64

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Solution

The fourth proportional to 422,881.92, 634,864.12 and 363,291.64 is: 545,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,881.92 : 634,864.12 = 363,291.64 : x
  2. Step 2: Convert to fraction form
    422,881.92/634,864.12 = 363,291.64/x
  3. Step 3: Cross multiply
    422,881.92x = 634,864.12 × 363,291.64
  4. Step 4: Simplify right side
    422,881.92x = 230,640,827,331.96
  5. Step 5: Solve for x
    x = 230,640,827,331.96/422,881.92
  6. Step 6: Final answer
    x = 545,402.43

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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.