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Finding the Fourth Proportional to 676.26, 933.99 and 454.83

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Solution

The fourth proportional to 676.26, 933.99 and 454.83 is: 628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.26 : 933.99 = 454.83 : x
  2. Step 2: Convert to fraction form
    676.26/933.99 = 454.83/x
  3. Step 3: Cross multiply
    676.26x = 933.99 × 454.83
  4. Step 4: Simplify right side
    676.26x = 424,806.67
  5. Step 5: Solve for x
    x = 424,806.67/676.26
  6. Step 6: Final answer
    x = 628.17

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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.