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Finding the Fourth Proportional to 603.87, 833.90 and 383.24

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Solution

The fourth proportional to 603.87, 833.90 and 383.24 is: 529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.87 : 833.90 = 383.24 : x
  2. Step 2: Convert to fraction form
    603.87/833.90 = 383.24/x
  3. Step 3: Cross multiply
    603.87x = 833.90 × 383.24
  4. Step 4: Simplify right side
    603.87x = 319,577.75
  5. Step 5: Solve for x
    x = 319,577.75/603.87
  6. Step 6: Final answer
    x = 529.22

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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.