Home / 1,439,029.69-2,158,168.38-427,879.33

Finding the Fourth Proportional to 1,439,029.69, 2,158,168.38 and 427,879.33

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Solution

The fourth proportional to 1,439,029.69, 2,158,168.38 and 427,879.33 is: 641,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,029.69 : 2,158,168.38 = 427,879.33 : x
  2. Step 2: Convert to fraction form
    1,439,029.69/2,158,168.38 = 427,879.33/x
  3. Step 3: Cross multiply
    1,439,029.69x = 2,158,168.38 × 427,879.33
  4. Step 4: Simplify right side
    1,439,029.69x = 923,435,640,461.59
  5. Step 5: Solve for x
    x = 923,435,640,461.59/1,439,029.69
  6. Step 6: Final answer
    x = 641,707.15

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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.