Home / 1,620,119.73-2,430,170.80-660,571.60

Finding the Fourth Proportional to 1,620,119.73, 2,430,170.80 and 660,571.60

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Solution

The fourth proportional to 1,620,119.73, 2,430,170.80 and 660,571.60 is: 990,853.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,119.73 : 2,430,170.80 = 660,571.60 : x
  2. Step 2: Convert to fraction form
    1,620,119.73/2,430,170.80 = 660,571.60/x
  3. Step 3: Cross multiply
    1,620,119.73x = 2,430,170.80 × 660,571.60
  4. Step 4: Simplify right side
    1,620,119.73x = 1,605,301,813,629.28
  5. Step 5: Solve for x
    x = 1,605,301,813,629.28/1,620,119.73
  6. Step 6: Final answer
    x = 990,853.81

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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.