Home / 1,361,936.20-1,879,332.86-838,563.69

Finding the Fourth Proportional to 1,361,936.20, 1,879,332.86 and 838,563.69

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Solution

The fourth proportional to 1,361,936.20, 1,879,332.86 and 838,563.69 is: 1,157,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,936.20 : 1,879,332.86 = 838,563.69 : x
  2. Step 2: Convert to fraction form
    1,361,936.20/1,879,332.86 = 838,563.69/x
  3. Step 3: Cross multiply
    1,361,936.20x = 1,879,332.86 × 838,563.69
  4. Step 4: Simplify right side
    1,361,936.20x = 1,575,940,297,424.37
  5. Step 5: Solve for x
    x = 1,575,940,297,424.37/1,361,936.20
  6. Step 6: Final answer
    x = 1,157,132.25

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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.