Home / 778,093.11-1,074,036.42-455,907.51

Finding the Fourth Proportional to 778,093.11, 1,074,036.42 and 455,907.51

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Solution

The fourth proportional to 778,093.11, 1,074,036.42 and 455,907.51 is: 629,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,093.11 : 1,074,036.42 = 455,907.51 : x
  2. Step 2: Convert to fraction form
    778,093.11/1,074,036.42 = 455,907.51/x
  3. Step 3: Cross multiply
    778,093.11x = 1,074,036.42 × 455,907.51
  4. Step 4: Simplify right side
    778,093.11x = 489,661,269,891.51
  5. Step 5: Solve for x
    x = 489,661,269,891.51/778,093.11
  6. Step 6: Final answer
    x = 629,309.35

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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.