Home / 1,188,241.96-1,639,774.32-644,377.58

Finding the Fourth Proportional to 1,188,241.96, 1,639,774.32 and 644,377.58

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Solution

The fourth proportional to 1,188,241.96, 1,639,774.32 and 644,377.58 is: 889,241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,241.96 : 1,639,774.32 = 644,377.58 : x
  2. Step 2: Convert to fraction form
    1,188,241.96/1,639,774.32 = 644,377.58/x
  3. Step 3: Cross multiply
    1,188,241.96x = 1,639,774.32 × 644,377.58
  4. Step 4: Simplify right side
    1,188,241.96x = 1,056,633,808,067.75
  5. Step 5: Solve for x
    x = 1,056,633,808,067.75/1,188,241.96
  6. Step 6: Final answer
    x = 889,241.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.