Home / 720,976.23-1,081,370.47-188,538.33

Finding the Fourth Proportional to 720,976.23, 1,081,370.47 and 188,538.33

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Solution

The fourth proportional to 720,976.23, 1,081,370.47 and 188,538.33 is: 282,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,976.23 : 1,081,370.47 = 188,538.33 : x
  2. Step 2: Convert to fraction form
    720,976.23/1,081,370.47 = 188,538.33/x
  3. Step 3: Cross multiply
    720,976.23x = 1,081,370.47 × 188,538.33
  4. Step 4: Simplify right side
    720,976.23x = 203,879,782,525.12
  5. Step 5: Solve for x
    x = 203,879,782,525.12/720,976.23
  6. Step 6: Final answer
    x = 282,782.95

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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.