Home / 722,413.82-1,083,628.94-189,988.67

Finding the Fourth Proportional to 722,413.82, 1,083,628.94 and 189,988.67

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Solution

The fourth proportional to 722,413.82, 1,083,628.94 and 189,988.67 is: 284,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,413.82 : 1,083,628.94 = 189,988.67 : x
  2. Step 2: Convert to fraction form
    722,413.82/1,083,628.94 = 189,988.67/x
  3. Step 3: Cross multiply
    722,413.82x = 1,083,628.94 × 189,988.67
  4. Step 4: Simplify right side
    722,413.82x = 205,877,222,843.24
  5. Step 5: Solve for x
    x = 205,877,222,843.24/722,413.82
  6. Step 6: Final answer
    x = 284,985.17

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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.