Home / 1,119,358.26-1,678,512.39-408,889.44

Finding the Fourth Proportional to 1,119,358.26, 1,678,512.39 and 408,889.44

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Solution

The fourth proportional to 1,119,358.26, 1,678,512.39 and 408,889.44 is: 613,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,358.26 : 1,678,512.39 = 408,889.44 : x
  2. Step 2: Convert to fraction form
    1,119,358.26/1,678,512.39 = 408,889.44/x
  3. Step 3: Cross multiply
    1,119,358.26x = 1,678,512.39 × 408,889.44
  4. Step 4: Simplify right side
    1,119,358.26x = 686,325,991,180.16
  5. Step 5: Solve for x
    x = 686,325,991,180.16/1,119,358.26
  6. Step 6: Final answer
    x = 613,142.38

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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.