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Finding the Fourth Proportional to 554.09, 764.96 and 480.29

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Solution

The fourth proportional to 554.09, 764.96 and 480.29 is: 663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.09 : 764.96 = 480.29 : x
  2. Step 2: Convert to fraction form
    554.09/764.96 = 480.29/x
  3. Step 3: Cross multiply
    554.09x = 764.96 × 480.29
  4. Step 4: Simplify right side
    554.09x = 367,396.41
  5. Step 5: Solve for x
    x = 367,396.41/554.09
  6. Step 6: Final answer
    x = 663.07

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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.