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Finding the Fourth Proportional to 682.89, 941.94 and 630.99

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Solution

The fourth proportional to 682.89, 941.94 and 630.99 is: 870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.89 : 941.94 = 630.99 : x
  2. Step 2: Convert to fraction form
    682.89/941.94 = 630.99/x
  3. Step 3: Cross multiply
    682.89x = 941.94 × 630.99
  4. Step 4: Simplify right side
    682.89x = 594,350.30
  5. Step 5: Solve for x
    x = 594,350.30/682.89
  6. Step 6: Final answer
    x = 870.35

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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.