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Finding the Fourth Proportional to 634,666.64, 952,249.20 and 279,431.44

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Solution

The fourth proportional to 634,666.64, 952,249.20 and 279,431.44 is: 419,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,666.64 : 952,249.20 = 279,431.44 : x
  2. Step 2: Convert to fraction form
    634,666.64/952,249.20 = 279,431.44/x
  3. Step 3: Cross multiply
    634,666.64x = 952,249.20 × 279,431.44
  4. Step 4: Simplify right side
    634,666.64x = 266,088,365,194.85
  5. Step 5: Solve for x
    x = 266,088,365,194.85/634,666.64
  6. Step 6: Final answer
    x = 419,256.90

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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.