Home / 1,561,130.82-2,154,469.32-872,936.64

Finding the Fourth Proportional to 1,561,130.82, 2,154,469.32 and 872,936.64

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Solution

The fourth proportional to 1,561,130.82, 2,154,469.32 and 872,936.64 is: 1,204,713.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,130.82 : 2,154,469.32 = 872,936.64 : x
  2. Step 2: Convert to fraction form
    1,561,130.82/2,154,469.32 = 872,936.64/x
  3. Step 3: Cross multiply
    1,561,130.82x = 2,154,469.32 × 872,936.64
  4. Step 4: Simplify right side
    1,561,130.82x = 1,880,715,209,183.88
  5. Step 5: Solve for x
    x = 1,880,715,209,183.88/1,561,130.82
  6. Step 6: Final answer
    x = 1,204,713.39

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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.