Home / 864,390.38-1,296,789.24-295,777.68

Finding the Fourth Proportional to 864,390.38, 1,296,789.24 and 295,777.68

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Solution

The fourth proportional to 864,390.38, 1,296,789.24 and 295,777.68 is: 443,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,390.38 : 1,296,789.24 = 295,777.68 : x
  2. Step 2: Convert to fraction form
    864,390.38/1,296,789.24 = 295,777.68/x
  3. Step 3: Cross multiply
    864,390.38x = 1,296,789.24 × 295,777.68
  4. Step 4: Simplify right side
    864,390.38x = 383,561,312,856.16
  5. Step 5: Solve for x
    x = 383,561,312,856.16/864,390.38
  6. Step 6: Final answer
    x = 443,736.21

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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.