Home / 1,628,548.40-2,441,656.20-681,431.60

Finding the Fourth Proportional to 1,628,548.40, 2,441,656.20 and 681,431.60

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Solution

The fourth proportional to 1,628,548.40, 2,441,656.20 and 681,431.60 is: 1,021,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,548.40 : 2,441,656.20 = 681,431.60 : x
  2. Step 2: Convert to fraction form
    1,628,548.40/2,441,656.20 = 681,431.60/x
  3. Step 3: Cross multiply
    1,628,548.40x = 2,441,656.20 × 681,431.60
  4. Step 4: Simplify right side
    1,628,548.40x = 1,663,821,691,015.92
  5. Step 5: Solve for x
    x = 1,663,821,691,015.92/1,628,548.40
  6. Step 6: Final answer
    x = 1,021,659.34

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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.