Home / 1,302,842.87-1,797,879.67-722,041.28

Finding the Fourth Proportional to 1,302,842.87, 1,797,879.67 and 722,041.28

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Solution

The fourth proportional to 1,302,842.87, 1,797,879.67 and 722,041.28 is: 996,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,842.87 : 1,797,879.67 = 722,041.28 : x
  2. Step 2: Convert to fraction form
    1,302,842.87/1,797,879.67 = 722,041.28/x
  3. Step 3: Cross multiply
    1,302,842.87x = 1,797,879.67 × 722,041.28
  4. Step 4: Simplify right side
    1,302,842.87x = 1,298,143,338,212.78
  5. Step 5: Solve for x
    x = 1,298,143,338,212.78/1,302,842.87
  6. Step 6: Final answer
    x = 996,392.86

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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.