Home / 2,158,180.30-2,978,289.42-1,191,311.22

Finding the Fourth Proportional to 2,158,180.30, 2,978,289.42 and 1,191,311.22

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Solution

The fourth proportional to 2,158,180.30, 2,978,289.42 and 1,191,311.22 is: 1,644,009.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,180.30 : 2,978,289.42 = 1,191,311.22 : x
  2. Step 2: Convert to fraction form
    2,158,180.30/2,978,289.42 = 1,191,311.22/x
  3. Step 3: Cross multiply
    2,158,180.30x = 2,978,289.42 × 1,191,311.22
  4. Step 4: Simplify right side
    2,158,180.30x = 3,548,069,602,453.29
  5. Step 5: Solve for x
    x = 3,548,069,602,453.29/2,158,180.30
  6. Step 6: Final answer
    x = 1,644,009.82

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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.