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Finding the Fourth Proportional to 606.81, 837.88 and 488.41

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Solution

The fourth proportional to 606.81, 837.88 and 488.41 is: 674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.81 : 837.88 = 488.41 : x
  2. Step 2: Convert to fraction form
    606.81/837.88 = 488.41/x
  3. Step 3: Cross multiply
    606.81x = 837.88 × 488.41
  4. Step 4: Simplify right side
    606.81x = 409,232.20
  5. Step 5: Solve for x
    x = 409,232.20/606.81
  6. Step 6: Final answer
    x = 674.40

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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.