Home / 1,989,804.72-2,745,904.24-1,106,747.92

Finding the Fourth Proportional to 1,989,804.72, 2,745,904.24 and 1,106,747.92

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Solution

The fourth proportional to 1,989,804.72, 2,745,904.24 and 1,106,747.92 is: 1,527,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,804.72 : 2,745,904.24 = 1,106,747.92 : x
  2. Step 2: Convert to fraction form
    1,989,804.72/2,745,904.24 = 1,106,747.92/x
  3. Step 3: Cross multiply
    1,989,804.72x = 2,745,904.24 × 1,106,747.92
  4. Step 4: Simplify right side
    1,989,804.72x = 3,039,023,792,409.66
  5. Step 5: Solve for x
    x = 3,039,023,792,409.66/1,989,804.72
  6. Step 6: Final answer
    x = 1,527,297.51

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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.