Home / 1,918,659.80-2,876,471.49-720,448.64

Finding the Fourth Proportional to 1,918,659.80, 2,876,471.49 and 720,448.64

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Solution

The fourth proportional to 1,918,659.80, 2,876,471.49 and 720,448.64 is: 1,080,102.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,659.80 : 2,876,471.49 = 720,448.64 : x
  2. Step 2: Convert to fraction form
    1,918,659.80/2,876,471.49 = 720,448.64/x
  3. Step 3: Cross multiply
    1,918,659.80x = 2,876,471.49 × 720,448.64
  4. Step 4: Simplify right side
    1,918,659.80x = 2,072,349,972,969.27
  5. Step 5: Solve for x
    x = 2,072,349,972,969.27/1,918,659.80
  6. Step 6: Final answer
    x = 1,080,102.88

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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.