Home / 1,338,016.83-1,845,765.75-821,887.05

Finding the Fourth Proportional to 1,338,016.83, 1,845,765.75 and 821,887.05

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Solution

The fourth proportional to 1,338,016.83, 1,845,765.75 and 821,887.05 is: 1,133,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,016.83 : 1,845,765.75 = 821,887.05 : x
  2. Step 2: Convert to fraction form
    1,338,016.83/1,845,765.75 = 821,887.05/x
  3. Step 3: Cross multiply
    1,338,016.83x = 1,845,765.75 × 821,887.05
  4. Step 4: Simplify right side
    1,338,016.83x = 1,517,010,967,258.54
  5. Step 5: Solve for x
    x = 1,517,010,967,258.54/1,338,016.83
  6. Step 6: Final answer
    x = 1,133,775.70

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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.