Home / 1,489,517.05-2,232,525.97-689,107.86

Finding the Fourth Proportional to 1,489,517.05, 2,232,525.97 and 689,107.86

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Solution

The fourth proportional to 1,489,517.05, 2,232,525.97 and 689,107.86 is: 1,032,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,517.05 : 2,232,525.97 = 689,107.86 : x
  2. Step 2: Convert to fraction form
    1,489,517.05/2,232,525.97 = 689,107.86/x
  3. Step 3: Cross multiply
    1,489,517.05x = 2,232,525.97 × 689,107.86
  4. Step 4: Simplify right side
    1,489,517.05x = 1,538,451,193,581.12
  5. Step 5: Solve for x
    x = 1,538,451,193,581.12/1,489,517.05
  6. Step 6: Final answer
    x = 1,032,852.36

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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.