Home / 489,003.35-674,824.14-274,143.47

Finding the Fourth Proportional to 489,003.35, 674,824.14 and 274,143.47

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Solution

The fourth proportional to 489,003.35, 674,824.14 and 274,143.47 is: 378,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,003.35 : 674,824.14 = 274,143.47 : x
  2. Step 2: Convert to fraction form
    489,003.35/674,824.14 = 274,143.47/x
  3. Step 3: Cross multiply
    489,003.35x = 674,824.14 × 274,143.47
  4. Step 4: Simplify right side
    489,003.35x = 184,998,628,005.25
  5. Step 5: Solve for x
    x = 184,998,628,005.25/489,003.35
  6. Step 6: Final answer
    x = 378,317.71

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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.