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Finding the Fourth Proportional to 489,920.80, 734,692.24 and 190,361.95

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Solution

The fourth proportional to 489,920.80, 734,692.24 and 190,361.95 is: 285,469.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,920.80 : 734,692.24 = 190,361.95 : x
  2. Step 2: Convert to fraction form
    489,920.80/734,692.24 = 190,361.95/x
  3. Step 3: Cross multiply
    489,920.80x = 734,692.24 × 190,361.95
  4. Step 4: Simplify right side
    489,920.80x = 139,857,447,456.27
  5. Step 5: Solve for x
    x = 139,857,447,456.27/489,920.80
  6. Step 6: Final answer
    x = 285,469.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.