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Finding the Fourth Proportional to 1,839,664.27, 2,759,607.09 and 774,789.31

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Solution

The fourth proportional to 1,839,664.27, 2,759,607.09 and 774,789.31 is: 1,162,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,664.27 : 2,759,607.09 = 774,789.31 : x
  2. Step 2: Convert to fraction form
    1,839,664.27/2,759,607.09 = 774,789.31/x
  3. Step 3: Cross multiply
    1,839,664.27x = 2,759,607.09 × 774,789.31
  4. Step 4: Simplify right side
    1,839,664.27x = 2,138,114,073,132.21
  5. Step 5: Solve for x
    x = 2,138,114,073,132.21/1,839,664.27
  6. Step 6: Final answer
    x = 1,162,230.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.