Home / 822,961.74-1,133,163.78-720,413.34

Finding the Fourth Proportional to 822,961.74, 1,133,163.78 and 720,413.34

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Solution

The fourth proportional to 822,961.74, 1,133,163.78 and 720,413.34 is: 991,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,961.74 : 1,133,163.78 = 720,413.34 : x
  2. Step 2: Convert to fraction form
    822,961.74/1,133,163.78 = 720,413.34/x
  3. Step 3: Cross multiply
    822,961.74x = 1,133,163.78 × 720,413.34
  4. Step 4: Simplify right side
    822,961.74x = 816,346,303,516.83
  5. Step 5: Solve for x
    x = 816,346,303,516.83/822,961.74
  6. Step 6: Final answer
    x = 991,961.43

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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.