Home / 685,369.08-1,028,211.26-230,020.72

Finding the Fourth Proportional to 685,369.08, 1,028,211.26 and 230,020.72

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Solution

The fourth proportional to 685,369.08, 1,028,211.26 and 230,020.72 is: 345,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,369.08 : 1,028,211.26 = 230,020.72 : x
  2. Step 2: Convert to fraction form
    685,369.08/1,028,211.26 = 230,020.72/x
  3. Step 3: Cross multiply
    685,369.08x = 1,028,211.26 × 230,020.72
  4. Step 4: Simplify right side
    685,369.08x = 236,509,890,616.68
  5. Step 5: Solve for x
    x = 236,509,890,616.68/685,369.08
  6. Step 6: Final answer
    x = 345,083.98

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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.