Home / 1,122,290.71-1,684,106.78-412,390.51

Finding the Fourth Proportional to 1,122,290.71, 1,684,106.78 and 412,390.51

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Solution

The fourth proportional to 1,122,290.71, 1,684,106.78 and 412,390.51 is: 618,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,290.71 : 1,684,106.78 = 412,390.51 : x
  2. Step 2: Convert to fraction form
    1,122,290.71/1,684,106.78 = 412,390.51/x
  3. Step 3: Cross multiply
    1,122,290.71x = 1,684,106.78 × 412,390.51
  4. Step 4: Simplify right side
    1,122,290.71x = 694,509,647,626.44
  5. Step 5: Solve for x
    x = 694,509,647,626.44/1,122,290.71
  6. Step 6: Final answer
    x = 618,832.22

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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.