Home / 443,324.20-664,986.30-436,325.80

Finding the Fourth Proportional to 443,324.20, 664,986.30 and 436,325.80

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Solution

The fourth proportional to 443,324.20, 664,986.30 and 436,325.80 is: 654,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,324.20 : 664,986.30 = 436,325.80 : x
  2. Step 2: Convert to fraction form
    443,324.20/664,986.30 = 436,325.80/x
  3. Step 3: Cross multiply
    443,324.20x = 664,986.30 × 436,325.80
  4. Step 4: Simplify right side
    443,324.20x = 290,150,679,336.54
  5. Step 5: Solve for x
    x = 290,150,679,336.54/443,324.20
  6. Step 6: Final answer
    x = 654,488.70

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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.