Home / 1,489,738.20-2,234,607.30-543,139.80

Finding the Fourth Proportional to 1,489,738.20, 2,234,607.30 and 543,139.80

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Solution

The fourth proportional to 1,489,738.20, 2,234,607.30 and 543,139.80 is: 814,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,738.20 : 2,234,607.30 = 543,139.80 : x
  2. Step 2: Convert to fraction form
    1,489,738.20/2,234,607.30 = 543,139.80/x
  3. Step 3: Cross multiply
    1,489,738.20x = 2,234,607.30 × 543,139.80
  4. Step 4: Simplify right side
    1,489,738.20x = 1,213,704,162,000.54
  5. Step 5: Solve for x
    x = 1,213,704,162,000.54/1,489,738.20
  6. Step 6: Final answer
    x = 814,709.70

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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.