Home / 419,646.65-629,656.07-219,919.61

Finding the Fourth Proportional to 419,646.65, 629,656.07 and 219,919.61

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Solution

The fourth proportional to 419,646.65, 629,656.07 and 219,919.61 is: 329,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,646.65 : 629,656.07 = 219,919.61 : x
  2. Step 2: Convert to fraction form
    419,646.65/629,656.07 = 219,919.61/x
  3. Step 3: Cross multiply
    419,646.65x = 629,656.07 × 219,919.61
  4. Step 4: Simplify right side
    419,646.65x = 138,473,717,823.08
  5. Step 5: Solve for x
    x = 138,473,717,823.08/419,646.65
  6. Step 6: Final answer
    x = 329,976.94

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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.