Home / 1,663,197.80-2,491,110.30-1,288,004.20

Finding the Fourth Proportional to 1,663,197.80, 2,491,110.30 and 1,288,004.20

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Solution

The fourth proportional to 1,663,197.80, 2,491,110.30 and 1,288,004.20 is: 1,929,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,197.80 : 2,491,110.30 = 1,288,004.20 : x
  2. Step 2: Convert to fraction form
    1,663,197.80/2,491,110.30 = 1,288,004.20/x
  3. Step 3: Cross multiply
    1,663,197.80x = 2,491,110.30 × 1,288,004.20
  4. Step 4: Simplify right side
    1,663,197.80x = 3,208,560,529,063.26
  5. Step 5: Solve for x
    x = 3,208,560,529,063.26/1,663,197.80
  6. Step 6: Final answer
    x = 1,929,151.50

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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.