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Finding the Fourth Proportional to 604.12, 833.35 and 394.03

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Solution

The fourth proportional to 604.12, 833.35 and 394.03 is: 543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.12 : 833.35 = 394.03 : x
  2. Step 2: Convert to fraction form
    604.12/833.35 = 394.03/x
  3. Step 3: Cross multiply
    604.12x = 833.35 × 394.03
  4. Step 4: Simplify right side
    604.12x = 328,364.90
  5. Step 5: Solve for x
    x = 328,364.90/604.12
  6. Step 6: Final answer
    x = 543.54

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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.