Home / 2,059,605.60-3,089,991.60-639,805.20

Finding the Fourth Proportional to 2,059,605.60, 3,089,991.60 and 639,805.20

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Solution

The fourth proportional to 2,059,605.60, 3,089,991.60 and 639,805.20 is: 959,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059,605.60 : 3,089,991.60 = 639,805.20 : x
  2. Step 2: Convert to fraction form
    2,059,605.60/3,089,991.60 = 639,805.20/x
  3. Step 3: Cross multiply
    2,059,605.60x = 3,089,991.60 × 639,805.20
  4. Step 4: Simplify right side
    2,059,605.60x = 1,976,992,693,636.32
  5. Step 5: Solve for x
    x = 1,976,992,693,636.32/2,059,605.60
  6. Step 6: Final answer
    x = 959,888.97

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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.