Home / 1,362,578.37-1,880,400.78-781,907.83

Finding the Fourth Proportional to 1,362,578.37, 1,880,400.78 and 781,907.83

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Solution

The fourth proportional to 1,362,578.37, 1,880,400.78 and 781,907.83 is: 1,079,057.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,578.37 : 1,880,400.78 = 781,907.83 : x
  2. Step 2: Convert to fraction form
    1,362,578.37/1,880,400.78 = 781,907.83/x
  3. Step 3: Cross multiply
    1,362,578.37x = 1,880,400.78 × 781,907.83
  4. Step 4: Simplify right side
    1,362,578.37x = 1,470,300,093,420.11
  5. Step 5: Solve for x
    x = 1,470,300,093,420.11/1,362,578.37
  6. Step 6: Final answer
    x = 1,079,057.27

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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.