Home / 3,940,678.54-5,911,266.68-1,665,778.76

Finding the Fourth Proportional to 3,940,678.54, 5,911,266.68 and 1,665,778.76

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Solution

The fourth proportional to 3,940,678.54, 5,911,266.68 and 1,665,778.76 is: 2,498,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,678.54 : 5,911,266.68 = 1,665,778.76 : x
  2. Step 2: Convert to fraction form
    3,940,678.54/5,911,266.68 = 1,665,778.76/x
  3. Step 3: Cross multiply
    3,940,678.54x = 5,911,266.68 × 1,665,778.76
  4. Step 4: Simplify right side
    3,940,678.54x = 9,846,862,480,239.72
  5. Step 5: Solve for x
    x = 9,846,862,480,239.72/3,940,678.54
  6. Step 6: Final answer
    x = 2,498,773.34

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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.