Home / 850.20-1,173.72-571.89

Finding the Fourth Proportional to 850.20, 1,173.72 and 571.89

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Solution

The fourth proportional to 850.20, 1,173.72 and 571.89 is: 789.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.20 : 1,173.72 = 571.89 : x
  2. Step 2: Convert to fraction form
    850.20/1,173.72 = 571.89/x
  3. Step 3: Cross multiply
    850.20x = 1,173.72 × 571.89
  4. Step 4: Simplify right side
    850.20x = 671,243.50
  5. Step 5: Solve for x
    x = 671,243.50/850.20
  6. Step 6: Final answer
    x = 789.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.