Home / 2,158,239.36-2,978,353.86-1,191,370.38

Finding the Fourth Proportional to 2,158,239.36, 2,978,353.86 and 1,191,370.38

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Solution

The fourth proportional to 2,158,239.36, 2,978,353.86 and 1,191,370.38 is: 1,644,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,239.36 : 2,978,353.86 = 1,191,370.38 : x
  2. Step 2: Convert to fraction form
    2,158,239.36/2,978,353.86 = 1,191,370.38/x
  3. Step 3: Cross multiply
    2,158,239.36x = 2,978,353.86 × 1,191,370.38
  4. Step 4: Simplify right side
    2,158,239.36x = 3,548,322,569,962.67
  5. Step 5: Solve for x
    x = 3,548,322,569,962.67/2,158,239.36
  6. Step 6: Final answer
    x = 1,644,082.04

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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.