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Finding the Fourth Proportional to 610.29, 915.57 and 379.04

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Solution

The fourth proportional to 610.29, 915.57 and 379.04 is: 568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.29 : 915.57 = 379.04 : x
  2. Step 2: Convert to fraction form
    610.29/915.57 = 379.04/x
  3. Step 3: Cross multiply
    610.29x = 915.57 × 379.04
  4. Step 4: Simplify right side
    610.29x = 347,033.07
  5. Step 5: Solve for x
    x = 347,033.07/610.29
  6. Step 6: Final answer
    x = 568.64

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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.