Home / 1,152,128.43-1,589,682.78-668,413.44

Finding the Fourth Proportional to 1,152,128.43, 1,589,682.78 and 668,413.44

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Solution

The fourth proportional to 1,152,128.43, 1,589,682.78 and 668,413.44 is: 922,262.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,128.43 : 1,589,682.78 = 668,413.44 : x
  2. Step 2: Convert to fraction form
    1,152,128.43/1,589,682.78 = 668,413.44/x
  3. Step 3: Cross multiply
    1,152,128.43x = 1,589,682.78 × 668,413.44
  4. Step 4: Simplify right side
    1,152,128.43x = 1,062,565,335,488.56
  5. Step 5: Solve for x
    x = 1,062,565,335,488.56/1,152,128.43
  6. Step 6: Final answer
    x = 922,262.92

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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.