Home / 856,310.49-1,284,646.10-323,819.73

Finding the Fourth Proportional to 856,310.49, 1,284,646.10 and 323,819.73

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Solution

The fourth proportional to 856,310.49, 1,284,646.10 and 323,819.73 is: 485,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,310.49 : 1,284,646.10 = 323,819.73 : x
  2. Step 2: Convert to fraction form
    856,310.49/1,284,646.10 = 323,819.73/x
  3. Step 3: Cross multiply
    856,310.49x = 1,284,646.10 × 323,819.73
  4. Step 4: Simplify right side
    856,310.49x = 415,993,751,628.45
  5. Step 5: Solve for x
    x = 415,993,751,628.45/856,310.49
  6. Step 6: Final answer
    x = 485,797.80

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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.