Home / 680,235.23-1,019,999.88-200,400.75

Finding the Fourth Proportional to 680,235.23, 1,019,999.88 and 200,400.75

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Solution

The fourth proportional to 680,235.23, 1,019,999.88 and 200,400.75 is: 300,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,235.23 : 1,019,999.88 = 200,400.75 : x
  2. Step 2: Convert to fraction form
    680,235.23/1,019,999.88 = 200,400.75/x
  3. Step 3: Cross multiply
    680,235.23x = 1,019,999.88 × 200,400.75
  4. Step 4: Simplify right side
    680,235.23x = 204,408,740,951.91
  5. Step 5: Solve for x
    x = 204,408,740,951.91/680,235.23
  6. Step 6: Final answer
    x = 300,497.14

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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.