Home / 3,208,136.56-4,812,811.76-1,289,197.15

Finding the Fourth Proportional to 3,208,136.56, 4,812,811.76 and 1,289,197.15

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Solution

The fourth proportional to 3,208,136.56, 4,812,811.76 and 1,289,197.15 is: 1,934,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,136.56 : 4,812,811.76 = 1,289,197.15 : x
  2. Step 2: Convert to fraction form
    3,208,136.56/4,812,811.76 = 1,289,197.15/x
  3. Step 3: Cross multiply
    3,208,136.56x = 4,812,811.76 × 1,289,197.15
  4. Step 4: Simplify right side
    3,208,136.56x = 6,204,663,195,669.45
  5. Step 5: Solve for x
    x = 6,204,663,195,669.45/3,208,136.56
  6. Step 6: Final answer
    x = 1,934,039.62

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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.