Home / 850.01-1,273.93-387.27

Finding the Fourth Proportional to 850.01, 1,273.93 and 387.27

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Solution

The fourth proportional to 850.01, 1,273.93 and 387.27 is: 580.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.01 : 1,273.93 = 387.27 : x
  2. Step 2: Convert to fraction form
    850.01/1,273.93 = 387.27/x
  3. Step 3: Cross multiply
    850.01x = 1,273.93 × 387.27
  4. Step 4: Simplify right side
    850.01x = 493,353.90
  5. Step 5: Solve for x
    x = 493,353.90/850.01
  6. Step 6: Final answer
    x = 580.41

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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.