Home / 685,493.76-1,028,450.85-306,733.35

Finding the Fourth Proportional to 685,493.76, 1,028,450.85 and 306,733.35

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Solution

The fourth proportional to 685,493.76, 1,028,450.85 and 306,733.35 is: 460,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,493.76 : 1,028,450.85 = 306,733.35 : x
  2. Step 2: Convert to fraction form
    685,493.76/1,028,450.85 = 306,733.35/x
  3. Step 3: Cross multiply
    685,493.76x = 1,028,450.85 × 306,733.35
  4. Step 4: Simplify right side
    685,493.76x = 315,460,174,530.85
  5. Step 5: Solve for x
    x = 315,460,174,530.85/685,493.76
  6. Step 6: Final answer
    x = 460,194.09

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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.