Home / 685,052.28-1,027,201.14-211,606.20

Finding the Fourth Proportional to 685,052.28, 1,027,201.14 and 211,606.20

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Solution

The fourth proportional to 685,052.28, 1,027,201.14 and 211,606.20 is: 317,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,052.28 : 1,027,201.14 = 211,606.20 : x
  2. Step 2: Convert to fraction form
    685,052.28/1,027,201.14 = 211,606.20/x
  3. Step 3: Cross multiply
    685,052.28x = 1,027,201.14 × 211,606.20
  4. Step 4: Simplify right side
    685,052.28x = 217,362,129,871.07
  5. Step 5: Solve for x
    x = 217,362,129,871.07/685,052.28
  6. Step 6: Final answer
    x = 317,292.76

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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.