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Finding the Fourth Proportional to 634,873.66, 952,558.30 and 279,638.62

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Solution

The fourth proportional to 634,873.66, 952,558.30 and 279,638.62 is: 419,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,873.66 : 952,558.30 = 279,638.62 : x
  2. Step 2: Convert to fraction form
    634,873.66/952,558.30 = 279,638.62/x
  3. Step 3: Cross multiply
    634,873.66x = 952,558.30 × 279,638.62
  4. Step 4: Simplify right side
    634,873.66x = 266,372,088,481.55
  5. Step 5: Solve for x
    x = 266,372,088,481.55/634,873.66
  6. Step 6: Final answer
    x = 419,567.08

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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.