Home / 694,873.20-1,042,655.40-274,162.80

Finding the Fourth Proportional to 694,873.20, 1,042,655.40 and 274,162.80

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Solution

The fourth proportional to 694,873.20, 1,042,655.40 and 274,162.80 is: 411,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,873.20 : 1,042,655.40 = 274,162.80 : x
  2. Step 2: Convert to fraction form
    694,873.20/1,042,655.40 = 274,162.80/x
  3. Step 3: Cross multiply
    694,873.20x = 1,042,655.40 × 274,162.80
  4. Step 4: Simplify right side
    694,873.20x = 285,857,323,899.12
  5. Step 5: Solve for x
    x = 285,857,323,899.12/694,873.20
  6. Step 6: Final answer
    x = 411,380.56

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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.