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Finding the Fourth Proportional to 653.54, 980.96 and 444.67

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Solution

The fourth proportional to 653.54, 980.96 and 444.67 is: 667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.54 : 980.96 = 444.67 : x
  2. Step 2: Convert to fraction form
    653.54/980.96 = 444.67/x
  3. Step 3: Cross multiply
    653.54x = 980.96 × 444.67
  4. Step 4: Simplify right side
    653.54x = 436,203.48
  5. Step 5: Solve for x
    x = 436,203.48/653.54
  6. Step 6: Final answer
    x = 667.45

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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.