Home / 3,320,240.40-4,982,693.40-1,428,339.60

Finding the Fourth Proportional to 3,320,240.40, 4,982,693.40 and 1,428,339.60

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Solution

The fourth proportional to 3,320,240.40, 4,982,693.40 and 1,428,339.60 is: 2,143,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320,240.40 : 4,982,693.40 = 1,428,339.60 : x
  2. Step 2: Convert to fraction form
    3,320,240.40/4,982,693.40 = 1,428,339.60/x
  3. Step 3: Cross multiply
    3,320,240.40x = 4,982,693.40 × 1,428,339.60
  4. Step 4: Simplify right side
    3,320,240.40x = 7,116,978,297,878.64
  5. Step 5: Solve for x
    x = 7,116,978,297,878.64/3,320,240.40
  6. Step 6: Final answer
    x = 2,143,512.95

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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.