Home / 689,274.96-1,033,912.80-215,997.36

Finding the Fourth Proportional to 689,274.96, 1,033,912.80 and 215,997.36

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Solution

The fourth proportional to 689,274.96, 1,033,912.80 and 215,997.36 is: 323,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,274.96 : 1,033,912.80 = 215,997.36 : x
  2. Step 2: Convert to fraction form
    689,274.96/1,033,912.80 = 215,997.36/x
  3. Step 3: Cross multiply
    689,274.96x = 1,033,912.80 × 215,997.36
  4. Step 4: Simplify right side
    689,274.96x = 223,322,435,270.21
  5. Step 5: Solve for x
    x = 223,322,435,270.21/689,274.96
  6. Step 6: Final answer
    x = 323,996.15

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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.