Home / 489,619.49-675,723.42-274,760.39

Finding the Fourth Proportional to 489,619.49, 675,723.42 and 274,760.39

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Solution

The fourth proportional to 489,619.49, 675,723.42 and 274,760.39 is: 379,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,619.49 : 675,723.42 = 274,760.39 : x
  2. Step 2: Convert to fraction form
    489,619.49/675,723.42 = 274,760.39/x
  3. Step 3: Cross multiply
    489,619.49x = 675,723.42 × 274,760.39
  4. Step 4: Simplify right side
    489,619.49x = 185,662,032,100.64
  5. Step 5: Solve for x
    x = 185,662,032,100.64/489,619.49
  6. Step 6: Final answer
    x = 379,196.58

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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.