Home / 1,179,220.40-1,769,177.64-380,486.96

Finding the Fourth Proportional to 1,179,220.40, 1,769,177.64 and 380,486.96

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Solution

The fourth proportional to 1,179,220.40, 1,769,177.64 and 380,486.96 is: 570,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,220.40 : 1,769,177.64 = 380,486.96 : x
  2. Step 2: Convert to fraction form
    1,179,220.40/1,769,177.64 = 380,486.96/x
  3. Step 3: Cross multiply
    1,179,220.40x = 1,769,177.64 × 380,486.96
  4. Step 4: Simplify right side
    1,179,220.40x = 673,149,021,943.57
  5. Step 5: Solve for x
    x = 673,149,021,943.57/1,179,220.40
  6. Step 6: Final answer
    x = 570,842.42

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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.