Home / 489,770.07-734,938.80-205,435.23

Finding the Fourth Proportional to 489,770.07, 734,938.80 and 205,435.23

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Solution

The fourth proportional to 489,770.07, 734,938.80 and 205,435.23 is: 308,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,770.07 : 734,938.80 = 205,435.23 : x
  2. Step 2: Convert to fraction form
    489,770.07/734,938.80 = 205,435.23/x
  3. Step 3: Cross multiply
    489,770.07x = 734,938.80 × 205,435.23
  4. Step 4: Simplify right side
    489,770.07x = 150,982,321,413.92
  5. Step 5: Solve for x
    x = 150,982,321,413.92/489,770.07
  6. Step 6: Final answer
    x = 308,271.84

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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.