Home / 2,909,786.48-4,015,629.96-1,620,627.20

Finding the Fourth Proportional to 2,909,786.48, 4,015,629.96 and 1,620,627.20

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Solution

The fourth proportional to 2,909,786.48, 4,015,629.96 and 1,620,627.20 is: 2,236,534.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,786.48 : 4,015,629.96 = 1,620,627.20 : x
  2. Step 2: Convert to fraction form
    2,909,786.48/4,015,629.96 = 1,620,627.20/x
  3. Step 3: Cross multiply
    2,909,786.48x = 4,015,629.96 × 1,620,627.20
  4. Step 4: Simplify right side
    2,909,786.48x = 6,507,839,138,310.91
  5. Step 5: Solve for x
    x = 6,507,839,138,310.91/2,909,786.48
  6. Step 6: Final answer
    x = 2,236,534.94

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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.