Home / 1,110,991.80-1,666,487.70-978,022.20

Finding the Fourth Proportional to 1,110,991.80, 1,666,487.70 and 978,022.20

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Solution

The fourth proportional to 1,110,991.80, 1,666,487.70 and 978,022.20 is: 1,467,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,991.80 : 1,666,487.70 = 978,022.20 : x
  2. Step 2: Convert to fraction form
    1,110,991.80/1,666,487.70 = 978,022.20/x
  3. Step 3: Cross multiply
    1,110,991.80x = 1,666,487.70 × 978,022.20
  4. Step 4: Simplify right side
    1,110,991.80x = 1,629,861,966,626.94
  5. Step 5: Solve for x
    x = 1,629,861,966,626.94/1,110,991.80
  6. Step 6: Final answer
    x = 1,467,033.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.