Home / 397,895.06-547,879.22-299,920.64

Finding the Fourth Proportional to 397,895.06, 547,879.22 and 299,920.64

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Solution

The fourth proportional to 397,895.06, 547,879.22 and 299,920.64 is: 412,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,895.06 : 547,879.22 = 299,920.64 : x
  2. Step 2: Convert to fraction form
    397,895.06/547,879.22 = 299,920.64/x
  3. Step 3: Cross multiply
    397,895.06x = 547,879.22 × 299,920.64
  4. Step 4: Simplify right side
    397,895.06x = 164,320,283,190.80
  5. Step 5: Solve for x
    x = 164,320,283,190.80/397,895.06
  6. Step 6: Final answer
    x = 412,973.92

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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.