Home / 928,997.49-1,393,162.10-321,620.88

Finding the Fourth Proportional to 928,997.49, 1,393,162.10 and 321,620.88

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Solution

The fourth proportional to 928,997.49, 1,393,162.10 and 321,620.88 is: 482,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,997.49 : 1,393,162.10 = 321,620.88 : x
  2. Step 2: Convert to fraction form
    928,997.49/1,393,162.10 = 321,620.88/x
  3. Step 3: Cross multiply
    928,997.49x = 1,393,162.10 × 321,620.88
  4. Step 4: Simplify right side
    928,997.49x = 448,070,021,388.70
  5. Step 5: Solve for x
    x = 448,070,021,388.70/928,997.49
  6. Step 6: Final answer
    x = 482,315.64

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1.5x scale

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.