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Finding the Fourth Proportional to 1,338,945.12, 1,846,932.84 and 794,722.32

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Solution

The fourth proportional to 1,338,945.12, 1,846,932.84 and 794,722.32 is: 1,096,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,945.12 : 1,846,932.84 = 794,722.32 : x
  2. Step 2: Convert to fraction form
    1,338,945.12/1,846,932.84 = 794,722.32/x
  3. Step 3: Cross multiply
    1,338,945.12x = 1,846,932.84 × 794,722.32
  4. Step 4: Simplify right side
    1,338,945.12x = 1,467,798,751,488.99
  5. Step 5: Solve for x
    x = 1,467,798,751,488.99/1,338,945.12
  6. Step 6: Final answer
    x = 1,096,235.19

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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.