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Finding the Fourth Proportional to 676.14, 933.10 and 451.68

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Solution

The fourth proportional to 676.14, 933.10 and 451.68 is: 623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.14 : 933.10 = 451.68 : x
  2. Step 2: Convert to fraction form
    676.14/933.10 = 451.68/x
  3. Step 3: Cross multiply
    676.14x = 933.10 × 451.68
  4. Step 4: Simplify right side
    676.14x = 421,462.61
  5. Step 5: Solve for x
    x = 421,462.61/676.14
  6. Step 6: Final answer
    x = 623.34

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Double scale
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1.5x scale

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.