Home / 654,499.20-981,172.80-443,452.80

Finding the Fourth Proportional to 654,499.20, 981,172.80 and 443,452.80

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Solution

The fourth proportional to 654,499.20, 981,172.80 and 443,452.80 is: 664,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,499.20 : 981,172.80 = 443,452.80 : x
  2. Step 2: Convert to fraction form
    654,499.20/981,172.80 = 443,452.80/x
  3. Step 3: Cross multiply
    654,499.20x = 981,172.80 × 443,452.80
  4. Step 4: Simplify right side
    654,499.20x = 435,103,825,443.84
  5. Step 5: Solve for x
    x = 435,103,825,443.84/654,499.20
  6. Step 6: Final answer
    x = 664,788.93

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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.