Home / 2,158,904.58-2,978,039.40-1,394,958.12

Finding the Fourth Proportional to 2,158,904.58, 2,978,039.40 and 1,394,958.12

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Solution

The fourth proportional to 2,158,904.58, 2,978,039.40 and 1,394,958.12 is: 1,924,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,904.58 : 2,978,039.40 = 1,394,958.12 : x
  2. Step 2: Convert to fraction form
    2,158,904.58/2,978,039.40 = 1,394,958.12/x
  3. Step 3: Cross multiply
    2,158,904.58x = 2,978,039.40 × 1,394,958.12
  4. Step 4: Simplify right side
    2,158,904.58x = 4,154,240,242,709.93
  5. Step 5: Solve for x
    x = 4,154,240,242,709.93/2,158,904.58
  6. Step 6: Final answer
    x = 1,924,235.23

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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.