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Finding the Fourth Proportional to 479.68, 660.32 and 444.80

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Solution

The fourth proportional to 479.68, 660.32 and 444.80 is: 612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.68 : 660.32 = 444.80 : x
  2. Step 2: Convert to fraction form
    479.68/660.32 = 444.80/x
  3. Step 3: Cross multiply
    479.68x = 660.32 × 444.80
  4. Step 4: Simplify right side
    479.68x = 293,710.34
  5. Step 5: Solve for x
    x = 293,710.34/479.68
  6. Step 6: Final answer
    x = 612.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.