Home / 489,088.86-674,942.52-274,228.92

Finding the Fourth Proportional to 489,088.86, 674,942.52 and 274,228.92

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Solution

The fourth proportional to 489,088.86, 674,942.52 and 274,228.92 is: 378,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,088.86 : 674,942.52 = 274,228.92 : x
  2. Step 2: Convert to fraction form
    489,088.86/674,942.52 = 274,228.92/x
  3. Step 3: Cross multiply
    489,088.86x = 674,942.52 × 274,228.92
  4. Step 4: Simplify right side
    489,088.86x = 185,088,758,321.68
  5. Step 5: Solve for x
    x = 185,088,758,321.68/489,088.86
  6. Step 6: Final answer
    x = 378,435.85

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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.