Home / 485,136.56-727,836.12-274,922.12

Finding the Fourth Proportional to 485,136.56, 727,836.12 and 274,922.12

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Solution

The fourth proportional to 485,136.56, 727,836.12 and 274,922.12 is: 412,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,136.56 : 727,836.12 = 274,922.12 : x
  2. Step 2: Convert to fraction form
    485,136.56/727,836.12 = 274,922.12/x
  3. Step 3: Cross multiply
    485,136.56x = 727,836.12 × 274,922.12
  4. Step 4: Simplify right side
    485,136.56x = 200,098,245,483.79
  5. Step 5: Solve for x
    x = 200,098,245,483.79/485,136.56
  6. Step 6: Final answer
    x = 412,457.57

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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.