Home / 1,388,682.70-2,078,358.45-968,778.70

Finding the Fourth Proportional to 1,388,682.70, 2,078,358.45 and 968,778.70

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Solution

The fourth proportional to 1,388,682.70, 2,078,358.45 and 968,778.70 is: 1,449,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,682.70 : 2,078,358.45 = 968,778.70 : x
  2. Step 2: Convert to fraction form
    1,388,682.70/2,078,358.45 = 968,778.70/x
  3. Step 3: Cross multiply
    1,388,682.70x = 2,078,358.45 × 968,778.70
  4. Step 4: Simplify right side
    1,388,682.70x = 2,013,469,397,325.02
  5. Step 5: Solve for x
    x = 2,013,469,397,325.02/1,388,682.70
  6. Step 6: Final answer
    x = 1,449,913.21

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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.