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Finding the Fourth Proportional to 479.32, 714.42 and 451.98

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Solution

The fourth proportional to 479.32, 714.42 and 451.98 is: 673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.32 : 714.42 = 451.98 : x
  2. Step 2: Convert to fraction form
    479.32/714.42 = 451.98/x
  3. Step 3: Cross multiply
    479.32x = 714.42 × 451.98
  4. Step 4: Simplify right side
    479.32x = 322,903.55
  5. Step 5: Solve for x
    x = 322,903.55/479.32
  6. Step 6: Final answer
    x = 673.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.