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Finding the Fourth Proportional to 602.43, 832.12 and 445.29

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Solution

The fourth proportional to 602.43, 832.12 and 445.29 is: 615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.43 : 832.12 = 445.29 : x
  2. Step 2: Convert to fraction form
    602.43/832.12 = 445.29/x
  3. Step 3: Cross multiply
    602.43x = 832.12 × 445.29
  4. Step 4: Simplify right side
    602.43x = 370,533.60
  5. Step 5: Solve for x
    x = 370,533.60/602.43
  6. Step 6: Final answer
    x = 615.06

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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.