Home / 1,320,165.92-1,821,780.24-716,540.96

Finding the Fourth Proportional to 1,320,165.92, 1,821,780.24 and 716,540.96

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Solution

The fourth proportional to 1,320,165.92, 1,821,780.24 and 716,540.96 is: 988,800.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,165.92 : 1,821,780.24 = 716,540.96 : x
  2. Step 2: Convert to fraction form
    1,320,165.92/1,821,780.24 = 716,540.96/x
  3. Step 3: Cross multiply
    1,320,165.92x = 1,821,780.24 × 716,540.96
  4. Step 4: Simplify right side
    1,320,165.92x = 1,305,380,162,078.63
  5. Step 5: Solve for x
    x = 1,305,380,162,078.63/1,320,165.92
  6. Step 6: Final answer
    x = 988,800.08

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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.