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Finding the Fourth Proportional to 634,615.16, 952,171.96 and 279,379.94

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Solution

The fourth proportional to 634,615.16, 952,171.96 and 279,379.94 is: 419,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,615.16 : 952,171.96 = 279,379.94 : x
  2. Step 2: Convert to fraction form
    634,615.16/952,171.96 = 279,379.94/x
  3. Step 3: Cross multiply
    634,615.16x = 952,171.96 × 279,379.94
  4. Step 4: Simplify right side
    634,615.16x = 266,017,745,054.48
  5. Step 5: Solve for x
    x = 266,017,745,054.48/634,615.16
  6. Step 6: Final answer
    x = 419,179.63

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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.