Home / 645,694.52-967,899.09-308,340.79

Finding the Fourth Proportional to 645,694.52, 967,899.09 and 308,340.79

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Solution

The fourth proportional to 645,694.52, 967,899.09 and 308,340.79 is: 462,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,694.52 : 967,899.09 = 308,340.79 : x
  2. Step 2: Convert to fraction form
    645,694.52/967,899.09 = 308,340.79/x
  3. Step 3: Cross multiply
    645,694.52x = 967,899.09 × 308,340.79
  4. Step 4: Simplify right side
    645,694.52x = 298,442,770,050.88
  5. Step 5: Solve for x
    x = 298,442,770,050.88/645,694.52
  6. Step 6: Final answer
    x = 462,204.28

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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.