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Finding the Fourth Proportional to 448.92, 622.80 and 425.16

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Solution

The fourth proportional to 448.92, 622.80 and 425.16 is: 589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.92 : 622.80 = 425.16 : x
  2. Step 2: Convert to fraction form
    448.92/622.80 = 425.16/x
  3. Step 3: Cross multiply
    448.92x = 622.80 × 425.16
  4. Step 4: Simplify right side
    448.92x = 264,789.65
  5. Step 5: Solve for x
    x = 264,789.65/448.92
  6. Step 6: Final answer
    x = 589.84

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.