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Finding the Fourth Proportional to 483.76, 721.18 and 444.88

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Solution

The fourth proportional to 483.76, 721.18 and 444.88 is: 663.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.76 : 721.18 = 444.88 : x
  2. Step 2: Convert to fraction form
    483.76/721.18 = 444.88/x
  3. Step 3: Cross multiply
    483.76x = 721.18 × 444.88
  4. Step 4: Simplify right side
    483.76x = 320,838.56
  5. Step 5: Solve for x
    x = 320,838.56/483.76
  6. Step 6: Final answer
    x = 663.22

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1.5x scale

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.