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Finding the Fourth Proportional to 607.04, 837.29 and 447.42

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Solution

The fourth proportional to 607.04, 837.29 and 447.42 is: 617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.04 : 837.29 = 447.42 : x
  2. Step 2: Convert to fraction form
    607.04/837.29 = 447.42/x
  3. Step 3: Cross multiply
    607.04x = 837.29 × 447.42
  4. Step 4: Simplify right side
    607.04x = 374,622.03
  5. Step 5: Solve for x
    x = 374,622.03/607.04
  6. Step 6: Final answer
    x = 617.12

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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.