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Finding the Fourth Proportional to 422,427.89, 634,970.44 and 366,958.76

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Solution

The fourth proportional to 422,427.89, 634,970.44 and 366,958.76 is: 551,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,427.89 : 634,970.44 = 366,958.76 : x
  2. Step 2: Convert to fraction form
    422,427.89/634,970.44 = 366,958.76/x
  3. Step 3: Cross multiply
    422,427.89x = 634,970.44 × 366,958.76
  4. Step 4: Simplify right side
    422,427.89x = 233,007,962,582.90
  5. Step 5: Solve for x
    x = 233,007,962,582.90/422,427.89
  6. Step 6: Final answer
    x = 551,592.28

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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.