Home / 2,179,439.53-3,007,286.75-1,261,489.10

Finding the Fourth Proportional to 2,179,439.53, 3,007,286.75 and 1,261,489.10

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Solution

The fourth proportional to 2,179,439.53, 3,007,286.75 and 1,261,489.10 is: 1,740,658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,439.53 : 3,007,286.75 = 1,261,489.10 : x
  2. Step 2: Convert to fraction form
    2,179,439.53/3,007,286.75 = 1,261,489.10/x
  3. Step 3: Cross multiply
    2,179,439.53x = 3,007,286.75 × 1,261,489.10
  4. Step 4: Simplify right side
    2,179,439.53x = 3,793,659,443,816.71
  5. Step 5: Solve for x
    x = 3,793,659,443,816.71/2,179,439.53
  6. Step 6: Final answer
    x = 1,740,658.27

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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.