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Finding the Fourth Proportional to 572.19, 789.48 and 339.27

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Solution

The fourth proportional to 572.19, 789.48 and 339.27 is: 468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.19 : 789.48 = 339.27 : x
  2. Step 2: Convert to fraction form
    572.19/789.48 = 339.27/x
  3. Step 3: Cross multiply
    572.19x = 789.48 × 339.27
  4. Step 4: Simplify right side
    572.19x = 267,846.88
  5. Step 5: Solve for x
    x = 267,846.88/572.19
  6. Step 6: Final answer
    x = 468.11

Related Problems

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Double scale
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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.