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Finding the Fourth Proportional to 444.46, 612.84 and 392.62

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Solution

The fourth proportional to 444.46, 612.84 and 392.62 is: 541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.46 : 612.84 = 392.62 : x
  2. Step 2: Convert to fraction form
    444.46/612.84 = 392.62/x
  3. Step 3: Cross multiply
    444.46x = 612.84 × 392.62
  4. Step 4: Simplify right side
    444.46x = 240,613.24
  5. Step 5: Solve for x
    x = 240,613.24/444.46
  6. Step 6: Final answer
    x = 541.36

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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.