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Finding the Fourth Proportional to 554.56, 835.15 and 483.28

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Solution

The fourth proportional to 554.56, 835.15 and 483.28 is: 727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.56 : 835.15 = 483.28 : x
  2. Step 2: Convert to fraction form
    554.56/835.15 = 483.28/x
  3. Step 3: Cross multiply
    554.56x = 835.15 × 483.28
  4. Step 4: Simplify right side
    554.56x = 403,611.29
  5. Step 5: Solve for x
    x = 403,611.29/554.56
  6. Step 6: Final answer
    x = 727.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.