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Finding the Fourth Proportional to 676.68, 933.44 and 414.51

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Solution

The fourth proportional to 676.68, 933.44 and 414.51 is: 571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.68 : 933.44 = 414.51 : x
  2. Step 2: Convert to fraction form
    676.68/933.44 = 414.51/x
  3. Step 3: Cross multiply
    676.68x = 933.44 × 414.51
  4. Step 4: Simplify right side
    676.68x = 386,918.14
  5. Step 5: Solve for x
    x = 386,918.14/676.68
  6. Step 6: Final answer
    x = 571.79

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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.