Home / 1,387,362.93-2,081,874.69-489,559.64

Finding the Fourth Proportional to 1,387,362.93, 2,081,874.69 and 489,559.64

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Solution

The fourth proportional to 1,387,362.93, 2,081,874.69 and 489,559.64 is: 734,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,362.93 : 2,081,874.69 = 489,559.64 : x
  2. Step 2: Convert to fraction form
    1,387,362.93/2,081,874.69 = 489,559.64/x
  3. Step 3: Cross multiply
    1,387,362.93x = 2,081,874.69 × 489,559.64
  4. Step 4: Simplify right side
    1,387,362.93x = 1,019,201,813,352.14
  5. Step 5: Solve for x
    x = 1,019,201,813,352.14/1,387,362.93
  6. Step 6: Final answer
    x = 734,632.44

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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.