Home / 1,319,777.76-1,821,273.84-775,974.72

Finding the Fourth Proportional to 1,319,777.76, 1,821,273.84 and 775,974.72

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Solution

The fourth proportional to 1,319,777.76, 1,821,273.84 and 775,974.72 is: 1,070,833.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,777.76 : 1,821,273.84 = 775,974.72 : x
  2. Step 2: Convert to fraction form
    1,319,777.76/1,821,273.84 = 775,974.72/x
  3. Step 3: Cross multiply
    1,319,777.76x = 1,821,273.84 × 775,974.72
  4. Step 4: Simplify right side
    1,319,777.76x = 1,413,262,458,037.32
  5. Step 5: Solve for x
    x = 1,413,262,458,037.32/1,319,777.76
  6. Step 6: Final answer
    x = 1,070,833.67

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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.