Home / 2,080,345.20-3,120,690.60-660,361.20

Finding the Fourth Proportional to 2,080,345.20, 3,120,690.60 and 660,361.20

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Solution

The fourth proportional to 2,080,345.20, 3,120,690.60 and 660,361.20 is: 990,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,345.20 : 3,120,690.60 = 660,361.20 : x
  2. Step 2: Convert to fraction form
    2,080,345.20/3,120,690.60 = 660,361.20/x
  3. Step 3: Cross multiply
    2,080,345.20x = 3,120,690.60 × 660,361.20
  4. Step 4: Simplify right side
    2,080,345.20x = 2,060,782,989,444.72
  5. Step 5: Solve for x
    x = 2,060,782,989,444.72/2,080,345.20
  6. Step 6: Final answer
    x = 990,596.65

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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.