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Finding the Fourth Proportional to 1,121,852, 1,682,778 and 333,884

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Solution

The fourth proportional to 1,121,852, 1,682,778 and 333,884 is: 500,826

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,852 : 1,682,778 = 333,884 : x
  2. Step 2: Convert to fraction form
    1,121,852/1,682,778 = 333,884/x
  3. Step 3: Cross multiply
    1,121,852x = 1,682,778 × 333,884
  4. Step 4: Simplify right side
    1,121,852x = 561,852,649,752
  5. Step 5: Solve for x
    x = 561,852,649,752/1,121,852
  6. Step 6: Final answer
    x = 500,826

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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.