Home / 2,158,370.68-2,978,533.26-1,191,480.20

Finding the Fourth Proportional to 2,158,370.68, 2,978,533.26 and 1,191,480.20

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Solution

The fourth proportional to 2,158,370.68, 2,978,533.26 and 1,191,480.20 is: 1,644,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,370.68 : 2,978,533.26 = 1,191,480.20 : x
  2. Step 2: Convert to fraction form
    2,158,370.68/2,978,533.26 = 1,191,480.20/x
  3. Step 3: Cross multiply
    2,158,370.68x = 2,978,533.26 × 1,191,480.20
  4. Step 4: Simplify right side
    2,158,370.68x = 3,548,863,404,331.45
  5. Step 5: Solve for x
    x = 3,548,863,404,331.45/2,158,370.68
  6. Step 6: Final answer
    x = 1,644,232.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.