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Finding the Fourth Proportional to 604.82, 904.73 and 553.08

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Solution

The fourth proportional to 604.82, 904.73 and 553.08 is: 827.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.82 : 904.73 = 553.08 : x
  2. Step 2: Convert to fraction form
    604.82/904.73 = 553.08/x
  3. Step 3: Cross multiply
    604.82x = 904.73 × 553.08
  4. Step 4: Simplify right side
    604.82x = 500,385.30
  5. Step 5: Solve for x
    x = 500,385.30/604.82
  6. Step 6: Final answer
    x = 827.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.