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Finding the Fourth Proportional to 613.44, 845.04 and 602.88

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Solution

The fourth proportional to 613.44, 845.04 and 602.88 is: 830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.44 : 845.04 = 602.88 : x
  2. Step 2: Convert to fraction form
    613.44/845.04 = 602.88/x
  3. Step 3: Cross multiply
    613.44x = 845.04 × 602.88
  4. Step 4: Simplify right side
    613.44x = 509,457.72
  5. Step 5: Solve for x
    x = 509,457.72/613.44
  6. Step 6: Final answer
    x = 830.49

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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.