Home / 397,288.74-548,376.96-261,427.44

Finding the Fourth Proportional to 397,288.74, 548,376.96 and 261,427.44

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Solution

The fourth proportional to 397,288.74, 548,376.96 and 261,427.44 is: 360,847.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,288.74 : 548,376.96 = 261,427.44 : x
  2. Step 2: Convert to fraction form
    397,288.74/548,376.96 = 261,427.44/x
  3. Step 3: Cross multiply
    397,288.74x = 548,376.96 × 261,427.44
  4. Step 4: Simplify right side
    397,288.74x = 143,360,784,807.78
  5. Step 5: Solve for x
    x = 143,360,784,807.78/397,288.74
  6. Step 6: Final answer
    x = 360,847.84

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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.