Home / 1,989,231.40-2,986,448.86-1,181,091.16

Finding the Fourth Proportional to 1,989,231.40, 2,986,448.86 and 1,181,091.16

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Solution

The fourth proportional to 1,989,231.40, 2,986,448.86 and 1,181,091.16 is: 1,773,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,231.40 : 2,986,448.86 = 1,181,091.16 : x
  2. Step 2: Convert to fraction form
    1,989,231.40/2,986,448.86 = 1,181,091.16/x
  3. Step 3: Cross multiply
    1,989,231.40x = 2,986,448.86 × 1,181,091.16
  4. Step 4: Simplify right side
    1,989,231.40x = 3,527,268,348,338.08
  5. Step 5: Solve for x
    x = 3,527,268,348,338.08/1,989,231.40
  6. Step 6: Final answer
    x = 1,773,181.52

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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.