Home / 694,855.20-1,042,628.40-274,144.80

Finding the Fourth Proportional to 694,855.20, 1,042,628.40 and 274,144.80

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Solution

The fourth proportional to 694,855.20, 1,042,628.40 and 274,144.80 is: 411,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,855.20 : 1,042,628.40 = 274,144.80 : x
  2. Step 2: Convert to fraction form
    694,855.20/1,042,628.40 = 274,144.80/x
  3. Step 3: Cross multiply
    694,855.20x = 1,042,628.40 × 274,144.80
  4. Step 4: Simplify right side
    694,855.20x = 285,831,154,192.32
  5. Step 5: Solve for x
    x = 285,831,154,192.32/694,855.20
  6. Step 6: Final answer
    x = 411,353.55

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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.