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Finding the Fourth Proportional to 1,121,859, 1,682,788.50 and 333,891

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Solution

The fourth proportional to 1,121,859, 1,682,788.50 and 333,891 is: 500,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,859 : 1,682,788.50 = 333,891 : x
  2. Step 2: Convert to fraction form
    1,121,859/1,682,788.50 = 333,891/x
  3. Step 3: Cross multiply
    1,121,859x = 1,682,788.50 × 333,891
  4. Step 4: Simplify right side
    1,121,859x = 561,867,935,053.50
  5. Step 5: Solve for x
    x = 561,867,935,053.50/1,121,859
  6. Step 6: Final answer
    x = 500,836.50

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Similar ratio
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1.5x scale

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.