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Finding the Fourth Proportional to 606,379.54, 909,568.34 and 206,987.16

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Solution

The fourth proportional to 606,379.54, 909,568.34 and 206,987.16 is: 310,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,379.54 : 909,568.34 = 206,987.16 : x
  2. Step 2: Convert to fraction form
    606,379.54/909,568.34 = 206,987.16/x
  3. Step 3: Cross multiply
    606,379.54x = 909,568.34 × 206,987.16
  4. Step 4: Simplify right side
    606,379.54x = 188,268,967,522.51
  5. Step 5: Solve for x
    x = 188,268,967,522.51/606,379.54
  6. Step 6: Final answer
    x = 310,480.41

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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.