Home / 2,059,815.60-3,089,723.40-639,860.40

Finding the Fourth Proportional to 2,059,815.60, 3,089,723.40 and 639,860.40

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Solution

The fourth proportional to 2,059,815.60, 3,089,723.40 and 639,860.40 is: 959,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059,815.60 : 3,089,723.40 = 639,860.40 : x
  2. Step 2: Convert to fraction form
    2,059,815.60/3,089,723.40 = 639,860.40/x
  3. Step 3: Cross multiply
    2,059,815.60x = 3,089,723.40 × 639,860.40
  4. Step 4: Simplify right side
    2,059,815.60x = 1,976,991,650,613.36
  5. Step 5: Solve for x
    x = 1,976,991,650,613.36/2,059,815.60
  6. Step 6: Final answer
    x = 959,790.60

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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.