Home / 928,722.69-1,393,179.39-321,510.03

Finding the Fourth Proportional to 928,722.69, 1,393,179.39 and 321,510.03

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Solution

The fourth proportional to 928,722.69, 1,393,179.39 and 321,510.03 is: 482,298.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,722.69 : 1,393,179.39 = 321,510.03 : x
  2. Step 2: Convert to fraction form
    928,722.69/1,393,179.39 = 321,510.03/x
  3. Step 3: Cross multiply
    928,722.69x = 1,393,179.39 × 321,510.03
  4. Step 4: Simplify right side
    928,722.69x = 447,921,147,474.28
  5. Step 5: Solve for x
    x = 447,921,147,474.28/928,722.69
  6. Step 6: Final answer
    x = 482,298.06

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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.