Home / 814,978.92-1,222,467.24-309,538.92

Finding the Fourth Proportional to 814,978.92, 1,222,467.24 and 309,538.92

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Solution

The fourth proportional to 814,978.92, 1,222,467.24 and 309,538.92 is: 464,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,978.92 : 1,222,467.24 = 309,538.92 : x
  2. Step 2: Convert to fraction form
    814,978.92/1,222,467.24 = 309,538.92/x
  3. Step 3: Cross multiply
    814,978.92x = 1,222,467.24 × 309,538.92
  4. Step 4: Simplify right side
    814,978.92x = 378,401,189,204.98
  5. Step 5: Solve for x
    x = 378,401,189,204.98/814,978.92
  6. Step 6: Final answer
    x = 464,307.95

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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.