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Finding the Fourth Proportional to 450.47, 676.62 and 437.72

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Solution

The fourth proportional to 450.47, 676.62 and 437.72 is: 657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.47 : 676.62 = 437.72 : x
  2. Step 2: Convert to fraction form
    450.47/676.62 = 437.72/x
  3. Step 3: Cross multiply
    450.47x = 676.62 × 437.72
  4. Step 4: Simplify right side
    450.47x = 296,166.72
  5. Step 5: Solve for x
    x = 296,166.72/450.47
  6. Step 6: Final answer
    x = 657.46

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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.