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Finding the Fourth Proportional to 599,721.20, 899,028.22 and 299,940.92

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Solution

The fourth proportional to 599,721.20, 899,028.22 and 299,940.92 is: 449,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,721.20 : 899,028.22 = 299,940.92 : x
  2. Step 2: Convert to fraction form
    599,721.20/899,028.22 = 299,940.92/x
  3. Step 3: Cross multiply
    599,721.20x = 899,028.22 × 299,940.92
  4. Step 4: Simplify right side
    599,721.20x = 269,655,351,412.76
  5. Step 5: Solve for x
    x = 269,655,351,412.76/599,721.20
  6. Step 6: Final answer
    x = 449,634.52

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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.