Home / 397,896.06-547,880.60-299,921.64

Finding the Fourth Proportional to 397,896.06, 547,880.60 and 299,921.64

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Solution

The fourth proportional to 397,896.06, 547,880.60 and 299,921.64 is: 412,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,896.06 : 547,880.60 = 299,921.64 : x
  2. Step 2: Convert to fraction form
    397,896.06/547,880.60 = 299,921.64/x
  3. Step 3: Cross multiply
    397,896.06x = 547,880.60 × 299,921.64
  4. Step 4: Simplify right side
    397,896.06x = 164,321,248,076.18
  5. Step 5: Solve for x
    x = 164,321,248,076.18/397,896.06
  6. Step 6: Final answer
    x = 412,975.31

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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.