Home / 685,717.56-1,027,898.28-325,256.22

Finding the Fourth Proportional to 685,717.56, 1,027,898.28 and 325,256.22

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Solution

The fourth proportional to 685,717.56, 1,027,898.28 and 325,256.22 is: 487,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,717.56 : 1,027,898.28 = 325,256.22 : x
  2. Step 2: Convert to fraction form
    685,717.56/1,027,898.28 = 325,256.22/x
  3. Step 3: Cross multiply
    685,717.56x = 1,027,898.28 × 325,256.22
  4. Step 4: Simplify right side
    685,717.56x = 334,330,309,097.30
  5. Step 5: Solve for x
    x = 334,330,309,097.30/685,717.56
  6. Step 6: Final answer
    x = 487,562.71

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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.