Home / 686,805.36-1,030,355.43-231,441.54

Finding the Fourth Proportional to 686,805.36, 1,030,355.43 and 231,441.54

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Solution

The fourth proportional to 686,805.36, 1,030,355.43 and 231,441.54 is: 347,211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,805.36 : 1,030,355.43 = 231,441.54 : x
  2. Step 2: Convert to fraction form
    686,805.36/1,030,355.43 = 231,441.54/x
  3. Step 3: Cross multiply
    686,805.36x = 1,030,355.43 × 231,441.54
  4. Step 4: Simplify right side
    686,805.36x = 238,467,047,466.56
  5. Step 5: Solve for x
    x = 238,467,047,466.56/686,805.36
  6. Step 6: Final answer
    x = 347,211.98

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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.