Home / 1,387,362.36-2,081,873.85-489,559.07

Finding the Fourth Proportional to 1,387,362.36, 2,081,873.85 and 489,559.07

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Solution

The fourth proportional to 1,387,362.36, 2,081,873.85 and 489,559.07 is: 734,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,362.36 : 2,081,873.85 = 489,559.07 : x
  2. Step 2: Convert to fraction form
    1,387,362.36/2,081,873.85 = 489,559.07/x
  3. Step 3: Cross multiply
    1,387,362.36x = 2,081,873.85 × 489,559.07
  4. Step 4: Simplify right side
    1,387,362.36x = 1,019,200,229,232.16
  5. Step 5: Solve for x
    x = 1,019,200,229,232.16/1,387,362.36
  6. Step 6: Final answer
    x = 734,631.60

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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.