Home / 2,612,943.45-3,919,413.72-815,980.92

Finding the Fourth Proportional to 2,612,943.45, 3,919,413.72 and 815,980.92

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Solution

The fourth proportional to 2,612,943.45, 3,919,413.72 and 815,980.92 is: 1,223,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,943.45 : 3,919,413.72 = 815,980.92 : x
  2. Step 2: Convert to fraction form
    2,612,943.45/3,919,413.72 = 815,980.92/x
  3. Step 3: Cross multiply
    2,612,943.45x = 3,919,413.72 × 815,980.92
  4. Step 4: Simplify right side
    2,612,943.45x = 3,198,166,813,106.22
  5. Step 5: Solve for x
    x = 3,198,166,813,106.22/2,612,943.45
  6. Step 6: Final answer
    x = 1,223,970.93

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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.