Home / 436,217.76-654,517.80-211,750.56

Finding the Fourth Proportional to 436,217.76, 654,517.80 and 211,750.56

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Solution

The fourth proportional to 436,217.76, 654,517.80 and 211,750.56 is: 317,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,217.76 : 654,517.80 = 211,750.56 : x
  2. Step 2: Convert to fraction form
    436,217.76/654,517.80 = 211,750.56/x
  3. Step 3: Cross multiply
    436,217.76x = 654,517.80 × 211,750.56
  4. Step 4: Simplify right side
    436,217.76x = 138,594,510,679.97
  5. Step 5: Solve for x
    x = 138,594,510,679.97/436,217.76
  6. Step 6: Final answer
    x = 317,718.63

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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.