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Finding the Fourth Proportional to 454.40, 677.88 and 441.84

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Solution

The fourth proportional to 454.40, 677.88 and 441.84 is: 659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.40 : 677.88 = 441.84 : x
  2. Step 2: Convert to fraction form
    454.40/677.88 = 441.84/x
  3. Step 3: Cross multiply
    454.40x = 677.88 × 441.84
  4. Step 4: Simplify right side
    454.40x = 299,514.50
  5. Step 5: Solve for x
    x = 299,514.50/454.40
  6. Step 6: Final answer
    x = 659.15

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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.