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Finding the Fourth Proportional to 604.36, 832.54 and 438.08

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Solution

The fourth proportional to 604.36, 832.54 and 438.08 is: 603.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.36 : 832.54 = 438.08 : x
  2. Step 2: Convert to fraction form
    604.36/832.54 = 438.08/x
  3. Step 3: Cross multiply
    604.36x = 832.54 × 438.08
  4. Step 4: Simplify right side
    604.36x = 364,719.12
  5. Step 5: Solve for x
    x = 364,719.12/604.36
  6. Step 6: Final answer
    x = 603.48

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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.