Home / 1,489,020.96-2,054,839.68-809,960.16

Finding the Fourth Proportional to 1,489,020.96, 2,054,839.68 and 809,960.16

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Solution

The fourth proportional to 1,489,020.96, 2,054,839.68 and 809,960.16 is: 1,117,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,020.96 : 2,054,839.68 = 809,960.16 : x
  2. Step 2: Convert to fraction form
    1,489,020.96/2,054,839.68 = 809,960.16/x
  3. Step 3: Cross multiply
    1,489,020.96x = 2,054,839.68 × 809,960.16
  4. Step 4: Simplify right side
    1,489,020.96x = 1,664,338,275,987.15
  5. Step 5: Solve for x
    x = 1,664,338,275,987.15/1,489,020.96
  6. Step 6: Final answer
    x = 1,117,739.99

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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.