Home / 1,187,413.36-1,780,040.52-618,125.64

Finding the Fourth Proportional to 1,187,413.36, 1,780,040.52 and 618,125.64

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Solution

The fourth proportional to 1,187,413.36, 1,780,040.52 and 618,125.64 is: 926,626.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,413.36 : 1,780,040.52 = 618,125.64 : x
  2. Step 2: Convert to fraction form
    1,187,413.36/1,780,040.52 = 618,125.64/x
  3. Step 3: Cross multiply
    1,187,413.36x = 1,780,040.52 × 618,125.64
  4. Step 4: Simplify right side
    1,187,413.36x = 1,100,288,685,650.93
  5. Step 5: Solve for x
    x = 1,100,288,685,650.93/1,187,413.36
  6. Step 6: Final answer
    x = 926,626.50

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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.