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Finding the Fourth Proportional to 550,449.74, 759,623.33 and 308,745.23

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Solution

The fourth proportional to 550,449.74, 759,623.33 and 308,745.23 is: 426,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,449.74 : 759,623.33 = 308,745.23 : x
  2. Step 2: Convert to fraction form
    550,449.74/759,623.33 = 308,745.23/x
  3. Step 3: Cross multiply
    550,449.74x = 759,623.33 × 308,745.23
  4. Step 4: Simplify right side
    550,449.74x = 234,530,074,392.37
  5. Step 5: Solve for x
    x = 234,530,074,392.37/550,449.74
  6. Step 6: Final answer
    x = 426,069.92

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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.