Home / 800,216.89-1,200,024.07-260,331.94

Finding the Fourth Proportional to 800,216.89, 1,200,024.07 and 260,331.94

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Solution

The fourth proportional to 800,216.89, 1,200,024.07 and 260,331.94 is: 390,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,216.89 : 1,200,024.07 = 260,331.94 : x
  2. Step 2: Convert to fraction form
    800,216.89/1,200,024.07 = 260,331.94/x
  3. Step 3: Cross multiply
    800,216.89x = 1,200,024.07 × 260,331.94
  4. Step 4: Simplify right side
    800,216.89x = 312,404,590,983.15
  5. Step 5: Solve for x
    x = 312,404,590,983.15/800,216.89
  6. Step 6: Final answer
    x = 390,399.90

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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.