Home / 1,993,327.20-2,989,990.80-1,320,168.60

Finding the Fourth Proportional to 1,993,327.20, 2,989,990.80 and 1,320,168.60

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Solution

The fourth proportional to 1,993,327.20, 2,989,990.80 and 1,320,168.60 is: 1,980,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,327.20 : 2,989,990.80 = 1,320,168.60 : x
  2. Step 2: Convert to fraction form
    1,993,327.20/2,989,990.80 = 1,320,168.60/x
  3. Step 3: Cross multiply
    1,993,327.20x = 2,989,990.80 × 1,320,168.60
  4. Step 4: Simplify right side
    1,993,327.20x = 3,947,291,968,448.88
  5. Step 5: Solve for x
    x = 3,947,291,968,448.88/1,993,327.20
  6. Step 6: Final answer
    x = 1,980,252.90

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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.