Home / 1,340,246.56-1,849,554.54-728,399.38

Finding the Fourth Proportional to 1,340,246.56, 1,849,554.54 and 728,399.38

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Solution

The fourth proportional to 1,340,246.56, 1,849,554.54 and 728,399.38 is: 1,005,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,246.56 : 1,849,554.54 = 728,399.38 : x
  2. Step 2: Convert to fraction form
    1,340,246.56/1,849,554.54 = 728,399.38/x
  3. Step 3: Cross multiply
    1,340,246.56x = 1,849,554.54 × 728,399.38
  4. Step 4: Simplify right side
    1,340,246.56x = 1,347,214,380,212.19
  5. Step 5: Solve for x
    x = 1,347,214,380,212.19/1,340,246.56
  6. Step 6: Final answer
    x = 1,005,198.91

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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.