Home / 1,179,221.40-1,769,179.14-380,487.96

Finding the Fourth Proportional to 1,179,221.40, 1,769,179.14 and 380,487.96

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Solution

The fourth proportional to 1,179,221.40, 1,769,179.14 and 380,487.96 is: 570,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,221.40 : 1,769,179.14 = 380,487.96 : x
  2. Step 2: Convert to fraction form
    1,179,221.40/1,769,179.14 = 380,487.96/x
  3. Step 3: Cross multiply
    1,179,221.40x = 1,769,179.14 × 380,487.96
  4. Step 4: Simplify right side
    1,179,221.40x = 673,151,361,853.15
  5. Step 5: Solve for x
    x = 673,151,361,853.15/1,179,221.40
  6. Step 6: Final answer
    x = 570,843.92

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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.