Home / 309,910.28-464,814.38-289,736.42

Finding the Fourth Proportional to 309,910.28, 464,814.38 and 289,736.42

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Solution

The fourth proportional to 309,910.28, 464,814.38 and 289,736.42 is: 434,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,910.28 : 464,814.38 = 289,736.42 : x
  2. Step 2: Convert to fraction form
    309,910.28/464,814.38 = 289,736.42/x
  3. Step 3: Cross multiply
    309,910.28x = 464,814.38 × 289,736.42
  4. Step 4: Simplify right side
    309,910.28x = 134,673,652,825.99
  5. Step 5: Solve for x
    x = 134,673,652,825.99/309,910.28
  6. Step 6: Final answer
    x = 434,556.91

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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.