Home / 485,143.04-727,845.90-274,928.60

Finding the Fourth Proportional to 485,143.04, 727,845.90 and 274,928.60

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Solution

The fourth proportional to 485,143.04, 727,845.90 and 274,928.60 is: 412,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,143.04 : 727,845.90 = 274,928.60 : x
  2. Step 2: Convert to fraction form
    485,143.04/727,845.90 = 274,928.60/x
  3. Step 3: Cross multiply
    485,143.04x = 727,845.90 × 274,928.60
  4. Step 4: Simplify right side
    485,143.04x = 200,105,654,302.74
  5. Step 5: Solve for x
    x = 200,105,654,302.74/485,143.04
  6. Step 6: Final answer
    x = 412,467.33

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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.