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Finding the Fourth Proportional to 3,978,742.15, 5,969,277.60 and 1,283,012.74

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Solution

The fourth proportional to 3,978,742.15, 5,969,277.60 and 1,283,012.74 is: 1,924,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,742.15 : 5,969,277.60 = 1,283,012.74 : x
  2. Step 2: Convert to fraction form
    3,978,742.15/5,969,277.60 = 1,283,012.74/x
  3. Step 3: Cross multiply
    3,978,742.15x = 5,969,277.60 × 1,283,012.74
  4. Step 4: Simplify right side
    3,978,742.15x = 7,658,659,209,396.62
  5. Step 5: Solve for x
    x = 7,658,659,209,396.62/3,978,742.15
  6. Step 6: Final answer
    x = 1,924,894.58

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Why These Related Problems?

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