Home / 1,628,455.89-2,438,822.55-1,290,409.56

Finding the Fourth Proportional to 1,628,455.89, 2,438,822.55 and 1,290,409.56

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Solution

The fourth proportional to 1,628,455.89, 2,438,822.55 and 1,290,409.56 is: 1,932,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,455.89 : 2,438,822.55 = 1,290,409.56 : x
  2. Step 2: Convert to fraction form
    1,628,455.89/2,438,822.55 = 1,290,409.56/x
  3. Step 3: Cross multiply
    1,628,455.89x = 2,438,822.55 × 1,290,409.56
  4. Step 4: Simplify right side
    1,628,455.89x = 3,147,079,933,663.58
  5. Step 5: Solve for x
    x = 3,147,079,933,663.58/1,628,455.89
  6. Step 6: Final answer
    x = 1,932,554.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.