Home / 1,338,467.09-2,007,805.89-378,907.18

Finding the Fourth Proportional to 1,338,467.09, 2,007,805.89 and 378,907.18

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Solution

The fourth proportional to 1,338,467.09, 2,007,805.89 and 378,907.18 is: 568,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,467.09 : 2,007,805.89 = 378,907.18 : x
  2. Step 2: Convert to fraction form
    1,338,467.09/2,007,805.89 = 378,907.18/x
  3. Step 3: Cross multiply
    1,338,467.09x = 2,007,805.89 × 378,907.18
  4. Step 4: Simplify right side
    1,338,467.09x = 760,772,067,767.29
  5. Step 5: Solve for x
    x = 760,772,067,767.29/1,338,467.09
  6. Step 6: Final answer
    x = 568,390.57

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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.