Home / 489,125.86-674,979.66-298,069.54

Finding the Fourth Proportional to 489,125.86, 674,979.66 and 298,069.54

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Solution

The fourth proportional to 489,125.86, 674,979.66 and 298,069.54 is: 411,327.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,125.86 : 674,979.66 = 298,069.54 : x
  2. Step 2: Convert to fraction form
    489,125.86/674,979.66 = 298,069.54/x
  3. Step 3: Cross multiply
    489,125.86x = 674,979.66 × 298,069.54
  4. Step 4: Simplify right side
    489,125.86x = 201,190,876,765.56
  5. Step 5: Solve for x
    x = 201,190,876,765.56/489,125.86
  6. Step 6: Final answer
    x = 411,327.42

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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.