Home / 1,540,850.40-2,126,361.36-861,786.40

Finding the Fourth Proportional to 1,540,850.40, 2,126,361.36 and 861,786.40

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Solution

The fourth proportional to 1,540,850.40, 2,126,361.36 and 861,786.40 is: 1,189,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,850.40 : 2,126,361.36 = 861,786.40 : x
  2. Step 2: Convert to fraction form
    1,540,850.40/2,126,361.36 = 861,786.40/x
  3. Step 3: Cross multiply
    1,540,850.40x = 2,126,361.36 × 861,786.40
  4. Step 4: Simplify right side
    1,540,850.40x = 1,832,469,301,533.50
  5. Step 5: Solve for x
    x = 1,832,469,301,533.50/1,540,850.40
  6. Step 6: Final answer
    x = 1,189,258.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.