Home / 685,139.45-1,027,684.56-179,696.41

Finding the Fourth Proportional to 685,139.45, 1,027,684.56 and 179,696.41

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Solution

The fourth proportional to 685,139.45, 1,027,684.56 and 179,696.41 is: 269,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,139.45 : 1,027,684.56 = 179,696.41 : x
  2. Step 2: Convert to fraction form
    685,139.45/1,027,684.56 = 179,696.41/x
  3. Step 3: Cross multiply
    685,139.45x = 1,027,684.56 × 179,696.41
  4. Step 4: Simplify right side
    685,139.45x = 184,671,224,149.08
  5. Step 5: Solve for x
    x = 184,671,224,149.08/685,139.45
  6. Step 6: Final answer
    x = 269,538.16

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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.