Home / 1,893,415.40-2,611,431.78-1,214,413.80

Finding the Fourth Proportional to 1,893,415.40, 2,611,431.78 and 1,214,413.80

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Solution

The fourth proportional to 1,893,415.40, 2,611,431.78 and 1,214,413.80 is: 1,674,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893,415.40 : 2,611,431.78 = 1,214,413.80 : x
  2. Step 2: Convert to fraction form
    1,893,415.40/2,611,431.78 = 1,214,413.80/x
  3. Step 3: Cross multiply
    1,893,415.40x = 2,611,431.78 × 1,214,413.80
  4. Step 4: Simplify right side
    1,893,415.40x = 3,171,358,791,390.56
  5. Step 5: Solve for x
    x = 3,171,358,791,390.56/1,893,415.40
  6. Step 6: Final answer
    x = 1,674,940.85

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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.