Home / 1,222,732.14-1,687,413.77-678,876.49

Finding the Fourth Proportional to 1,222,732.14, 1,687,413.77 and 678,876.49

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Solution

The fourth proportional to 1,222,732.14, 1,687,413.77 and 678,876.49 is: 936,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,732.14 : 1,687,413.77 = 678,876.49 : x
  2. Step 2: Convert to fraction form
    1,222,732.14/1,687,413.77 = 678,876.49/x
  3. Step 3: Cross multiply
    1,222,732.14x = 1,687,413.77 × 678,876.49
  4. Step 4: Simplify right side
    1,222,732.14x = 1,145,545,537,355.27
  5. Step 5: Solve for x
    x = 1,145,545,537,355.27/1,222,732.14
  6. Step 6: Final answer
    x = 936,873.66

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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.