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Finding the Fourth Proportional to 508.94, 763.38 and 406.41

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Solution

The fourth proportional to 508.94, 763.38 and 406.41 is: 609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.94 : 763.38 = 406.41 : x
  2. Step 2: Convert to fraction form
    508.94/763.38 = 406.41/x
  3. Step 3: Cross multiply
    508.94x = 763.38 × 406.41
  4. Step 4: Simplify right side
    508.94x = 310,245.27
  5. Step 5: Solve for x
    x = 310,245.27/508.94
  6. Step 6: Final answer
    x = 609.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.