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Finding the Fourth Proportional to 613.38, 915.60 and 568.26

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Solution

The fourth proportional to 613.38, 915.60 and 568.26 is: 848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.38 : 915.60 = 568.26 : x
  2. Step 2: Convert to fraction form
    613.38/915.60 = 568.26/x
  3. Step 3: Cross multiply
    613.38x = 915.60 × 568.26
  4. Step 4: Simplify right side
    613.38x = 520,298.86
  5. Step 5: Solve for x
    x = 520,298.86/613.38
  6. Step 6: Final answer
    x = 848.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.