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Finding the Fourth Proportional to 604.66, 834.15 and 383.95

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Solution

The fourth proportional to 604.66, 834.15 and 383.95 is: 529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.66 : 834.15 = 383.95 : x
  2. Step 2: Convert to fraction form
    604.66/834.15 = 383.95/x
  3. Step 3: Cross multiply
    604.66x = 834.15 × 383.95
  4. Step 4: Simplify right side
    604.66x = 320,271.89
  5. Step 5: Solve for x
    x = 320,271.89/604.66
  6. Step 6: Final answer
    x = 529.67

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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.