Home / 639,698.04-959,481.38-213,187.94

Finding the Fourth Proportional to 639,698.04, 959,481.38 and 213,187.94

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Solution

The fourth proportional to 639,698.04, 959,481.38 and 213,187.94 is: 319,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,698.04 : 959,481.38 = 213,187.94 : x
  2. Step 2: Convert to fraction form
    639,698.04/959,481.38 = 213,187.94/x
  3. Step 3: Cross multiply
    639,698.04x = 959,481.38 × 213,187.94
  4. Step 4: Simplify right side
    639,698.04x = 204,549,858,870.56
  5. Step 5: Solve for x
    x = 204,549,858,870.56/639,698.04
  6. Step 6: Final answer
    x = 319,760.02

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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.