Home / 809,636.04-1,214,874.30-330,215.52

Finding the Fourth Proportional to 809,636.04, 1,214,874.30 and 330,215.52

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Solution

The fourth proportional to 809,636.04, 1,214,874.30 and 330,215.52 is: 495,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,636.04 : 1,214,874.30 = 330,215.52 : x
  2. Step 2: Convert to fraction form
    809,636.04/1,214,874.30 = 330,215.52/x
  3. Step 3: Cross multiply
    809,636.04x = 1,214,874.30 × 330,215.52
  4. Step 4: Simplify right side
    809,636.04x = 401,170,348,709.14
  5. Step 5: Solve for x
    x = 401,170,348,709.14/809,636.04
  6. Step 6: Final answer
    x = 495,494.68

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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.