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Finding the Fourth Proportional to 689,260, 1,033,890 and 190,624

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Solution

The fourth proportional to 689,260, 1,033,890 and 190,624 is: 285,936

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,260 : 1,033,890 = 190,624 : x
  2. Step 2: Convert to fraction form
    689,260/1,033,890 = 190,624/x
  3. Step 3: Cross multiply
    689,260x = 1,033,890 × 190,624
  4. Step 4: Simplify right side
    689,260x = 197,084,247,360
  5. Step 5: Solve for x
    x = 197,084,247,360/689,260
  6. Step 6: Final answer
    x = 285,936

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