Home / 1,993,448.40-2,990,172.60-1,139,643.60

Finding the Fourth Proportional to 1,993,448.40, 2,990,172.60 and 1,139,643.60

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Solution

The fourth proportional to 1,993,448.40, 2,990,172.60 and 1,139,643.60 is: 1,709,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,448.40 : 2,990,172.60 = 1,139,643.60 : x
  2. Step 2: Convert to fraction form
    1,993,448.40/2,990,172.60 = 1,139,643.60/x
  3. Step 3: Cross multiply
    1,993,448.40x = 2,990,172.60 × 1,139,643.60
  4. Step 4: Simplify right side
    1,993,448.40x = 3,407,731,066,485.36
  5. Step 5: Solve for x
    x = 3,407,731,066,485.36/1,993,448.40
  6. Step 6: Final answer
    x = 1,709,465.40

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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.