Home / 3,986,523.60-5,979,007.80-1,290,195.60

Finding the Fourth Proportional to 3,986,523.60, 5,979,007.80 and 1,290,195.60

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Solution

The fourth proportional to 3,986,523.60, 5,979,007.80 and 1,290,195.60 is: 1,935,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,523.60 : 5,979,007.80 = 1,290,195.60 : x
  2. Step 2: Convert to fraction form
    3,986,523.60/5,979,007.80 = 1,290,195.60/x
  3. Step 3: Cross multiply
    3,986,523.60x = 5,979,007.80 × 1,290,195.60
  4. Step 4: Simplify right side
    3,986,523.60x = 7,714,089,555,925.68
  5. Step 5: Solve for x
    x = 7,714,089,555,925.68/3,986,523.60
  6. Step 6: Final answer
    x = 1,935,041.74

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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.