Home / 1,108,078.38-1,662,413.67-398,112.57

Finding the Fourth Proportional to 1,108,078.38, 1,662,413.67 and 398,112.57

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Solution

The fourth proportional to 1,108,078.38, 1,662,413.67 and 398,112.57 is: 597,275.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,078.38 : 1,662,413.67 = 398,112.57 : x
  2. Step 2: Convert to fraction form
    1,108,078.38/1,662,413.67 = 398,112.57/x
  3. Step 3: Cross multiply
    1,108,078.38x = 1,662,413.67 × 398,112.57
  4. Step 4: Simplify right side
    1,108,078.38x = 661,827,778,566.83
  5. Step 5: Solve for x
    x = 661,827,778,566.83/1,108,078.38
  6. Step 6: Final answer
    x = 597,275.24

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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.