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Finding the Fourth Proportional to 610.53, 914.47 and 379.48

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Solution

The fourth proportional to 610.53, 914.47 and 379.48 is: 568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.53 : 914.47 = 379.48 : x
  2. Step 2: Convert to fraction form
    610.53/914.47 = 379.48/x
  3. Step 3: Cross multiply
    610.53x = 914.47 × 379.48
  4. Step 4: Simplify right side
    610.53x = 347,023.08
  5. Step 5: Solve for x
    x = 347,023.08/610.53
  6. Step 6: Final answer
    x = 568.40

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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.