Home / 489,747.93-734,905.52-205,413.18

Finding the Fourth Proportional to 489,747.93, 734,905.52 and 205,413.18

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Solution

The fourth proportional to 489,747.93, 734,905.52 and 205,413.18 is: 308,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,747.93 : 734,905.52 = 205,413.18 : x
  2. Step 2: Convert to fraction form
    489,747.93/734,905.52 = 205,413.18/x
  3. Step 3: Cross multiply
    489,747.93x = 734,905.52 × 205,413.18
  4. Step 4: Simplify right side
    489,747.93x = 150,959,278,835.69
  5. Step 5: Solve for x
    x = 150,959,278,835.69/489,747.93
  6. Step 6: Final answer
    x = 308,238.73

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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.