Home / 687,450.56-1,031,099.44-214,096.32

Finding the Fourth Proportional to 687,450.56, 1,031,099.44 and 214,096.32

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Solution

The fourth proportional to 687,450.56, 1,031,099.44 and 214,096.32 is: 321,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,450.56 : 1,031,099.44 = 214,096.32 : x
  2. Step 2: Convert to fraction form
    687,450.56/1,031,099.44 = 214,096.32/x
  3. Step 3: Cross multiply
    687,450.56x = 1,031,099.44 × 214,096.32
  4. Step 4: Simplify right side
    687,450.56x = 220,754,595,658.06
  5. Step 5: Solve for x
    x = 220,754,595,658.06/687,450.56
  6. Step 6: Final answer
    x = 321,120.69

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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.