Home / 489,766.48-734,364.27-189,896.74

Finding the Fourth Proportional to 489,766.48, 734,364.27 and 189,896.74

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Solution

The fourth proportional to 489,766.48, 734,364.27 and 189,896.74 is: 284,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,766.48 : 734,364.27 = 189,896.74 : x
  2. Step 2: Convert to fraction form
    489,766.48/734,364.27 = 189,896.74/x
  3. Step 3: Cross multiply
    489,766.48x = 734,364.27 × 189,896.74
  4. Step 4: Simplify right side
    489,766.48x = 139,453,381,413.21
  5. Step 5: Solve for x
    x = 139,453,381,413.21/489,766.48
  6. Step 6: Final answer
    x = 284,734.44

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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.