Home / 1,297,353.09-1,790,350.44-724,413.77

Finding the Fourth Proportional to 1,297,353.09, 1,790,350.44 and 724,413.77

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Solution

The fourth proportional to 1,297,353.09, 1,790,350.44 and 724,413.77 is: 999,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,353.09 : 1,790,350.44 = 724,413.77 : x
  2. Step 2: Convert to fraction form
    1,297,353.09/1,790,350.44 = 724,413.77/x
  3. Step 3: Cross multiply
    1,297,353.09x = 1,790,350.44 × 724,413.77
  4. Step 4: Simplify right side
    1,297,353.09x = 1,296,954,511,861.56
  5. Step 5: Solve for x
    x = 1,296,954,511,861.56/1,297,353.09
  6. Step 6: Final answer
    x = 999,692.78

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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.