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Finding the Fourth Proportional to 1,121,848, 1,682,772 and 333,880

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Solution

The fourth proportional to 1,121,848, 1,682,772 and 333,880 is: 500,820

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,848 : 1,682,772 = 333,880 : x
  2. Step 2: Convert to fraction form
    1,121,848/1,682,772 = 333,880/x
  3. Step 3: Cross multiply
    1,121,848x = 1,682,772 × 333,880
  4. Step 4: Simplify right side
    1,121,848x = 561,843,915,360
  5. Step 5: Solve for x
    x = 561,843,915,360/1,121,848
  6. Step 6: Final answer
    x = 500,820

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.