Home / 489,736.13-734,604.07-321,217.52

Finding the Fourth Proportional to 489,736.13, 734,604.07 and 321,217.52

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Solution

The fourth proportional to 489,736.13, 734,604.07 and 321,217.52 is: 481,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,736.13 : 734,604.07 = 321,217.52 : x
  2. Step 2: Convert to fraction form
    489,736.13/734,604.07 = 321,217.52/x
  3. Step 3: Cross multiply
    489,736.13x = 734,604.07 × 321,217.52
  4. Step 4: Simplify right side
    489,736.13x = 235,967,701,226.88
  5. Step 5: Solve for x
    x = 235,967,701,226.88/489,736.13
  6. Step 6: Final answer
    x = 481,826.21

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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.