Home / 1,320,093.76-1,821,731.04-716,481.92

Finding the Fourth Proportional to 1,320,093.76, 1,821,731.04 and 716,481.92

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Solution

The fourth proportional to 1,320,093.76, 1,821,731.04 and 716,481.92 is: 988,745.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,093.76 : 1,821,731.04 = 716,481.92 : x
  2. Step 2: Convert to fraction form
    1,320,093.76/1,821,731.04 = 716,481.92/x
  3. Step 3: Cross multiply
    1,320,093.76x = 1,821,731.04 × 716,481.92
  4. Step 4: Simplify right side
    1,320,093.76x = 1,305,237,353,262.80
  5. Step 5: Solve for x
    x = 1,305,237,353,262.80/1,320,093.76
  6. Step 6: Final answer
    x = 988,745.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.