Home / 1,286,765.67-1,775,949.51-713,990.37

Finding the Fourth Proportional to 1,286,765.67, 1,775,949.51 and 713,990.37

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Solution

The fourth proportional to 1,286,765.67, 1,775,949.51 and 713,990.37 is: 985,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,765.67 : 1,775,949.51 = 713,990.37 : x
  2. Step 2: Convert to fraction form
    1,286,765.67/1,775,949.51 = 713,990.37/x
  3. Step 3: Cross multiply
    1,286,765.67x = 1,775,949.51 × 713,990.37
  4. Step 4: Simplify right side
    1,286,765.67x = 1,268,010,847,746.22
  5. Step 5: Solve for x
    x = 1,268,010,847,746.22/1,286,765.67
  6. Step 6: Final answer
    x = 985,424.83

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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.