Home / 685,728.56-1,027,914.76-325,267.24

Finding the Fourth Proportional to 685,728.56, 1,027,914.76 and 325,267.24

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Solution

The fourth proportional to 685,728.56, 1,027,914.76 and 325,267.24 is: 487,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,728.56 : 1,027,914.76 = 325,267.24 : x
  2. Step 2: Convert to fraction form
    685,728.56/1,027,914.76 = 325,267.24/x
  3. Step 3: Cross multiply
    685,728.56x = 1,027,914.76 × 325,267.24
  4. Step 4: Simplify right side
    685,728.56x = 334,346,996,940.46
  5. Step 5: Solve for x
    x = 334,346,996,940.46/685,728.56
  6. Step 6: Final answer
    x = 487,579.22

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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.