Home / 1,289,977.25-1,934,966.75-330,436.44

Finding the Fourth Proportional to 1,289,977.25, 1,934,966.75 and 330,436.44

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Solution

The fourth proportional to 1,289,977.25, 1,934,966.75 and 330,436.44 is: 495,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,977.25 : 1,934,966.75 = 330,436.44 : x
  2. Step 2: Convert to fraction form
    1,289,977.25/1,934,966.75 = 330,436.44/x
  3. Step 3: Cross multiply
    1,289,977.25x = 1,934,966.75 × 330,436.44
  4. Step 4: Simplify right side
    1,289,977.25x = 639,383,522,736.19
  5. Step 5: Solve for x
    x = 639,383,522,736.19/1,289,977.25
  6. Step 6: Final answer
    x = 495,654.88

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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.