Home / 1,171,000.21-1,615,796.61-681,078.19

Finding the Fourth Proportional to 1,171,000.21, 1,615,796.61 and 681,078.19

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Solution

The fourth proportional to 1,171,000.21, 1,615,796.61 and 681,078.19 is: 939,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,000.21 : 1,615,796.61 = 681,078.19 : x
  2. Step 2: Convert to fraction form
    1,171,000.21/1,615,796.61 = 681,078.19/x
  3. Step 3: Cross multiply
    1,171,000.21x = 1,615,796.61 × 681,078.19
  4. Step 4: Simplify right side
    1,171,000.21x = 1,100,483,830,546.94
  5. Step 5: Solve for x
    x = 1,100,483,830,546.94/1,171,000.21
  6. Step 6: Final answer
    x = 939,781.07

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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.