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Finding the Fourth Proportional to 628.56, 942.84 and 603.05

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Solution

The fourth proportional to 628.56, 942.84 and 603.05 is: 904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.56 : 942.84 = 603.05 : x
  2. Step 2: Convert to fraction form
    628.56/942.84 = 603.05/x
  3. Step 3: Cross multiply
    628.56x = 942.84 × 603.05
  4. Step 4: Simplify right side
    628.56x = 568,574.95
  5. Step 5: Solve for x
    x = 568,574.95/628.56
  6. Step 6: Final answer
    x = 904.57

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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.