Home / 685,342.56-1,027,335.69-324,880.29

Finding the Fourth Proportional to 685,342.56, 1,027,335.69 and 324,880.29

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Solution

The fourth proportional to 685,342.56, 1,027,335.69 and 324,880.29 is: 486,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,342.56 : 1,027,335.69 = 324,880.29 : x
  2. Step 2: Convert to fraction form
    685,342.56/1,027,335.69 = 324,880.29/x
  3. Step 3: Cross multiply
    685,342.56x = 1,027,335.69 × 324,880.29
  4. Step 4: Simplify right side
    685,342.56x = 333,761,116,894.55
  5. Step 5: Solve for x
    x = 333,761,116,894.55/685,342.56
  6. Step 6: Final answer
    x = 486,998.96

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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.