Home / 998,804.56-1,378,012.68-568,779.76

Finding the Fourth Proportional to 998,804.56, 1,378,012.68 and 568,779.76

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Solution

The fourth proportional to 998,804.56, 1,378,012.68 and 568,779.76 is: 784,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,804.56 : 1,378,012.68 = 568,779.76 : x
  2. Step 2: Convert to fraction form
    998,804.56/1,378,012.68 = 568,779.76/x
  3. Step 3: Cross multiply
    998,804.56x = 1,378,012.68 × 568,779.76
  4. Step 4: Simplify right side
    998,804.56x = 783,785,721,407.36
  5. Step 5: Solve for x
    x = 783,785,721,407.36/998,804.56
  6. Step 6: Final answer
    x = 784,723.81

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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.