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Finding the Fourth Proportional to 1,016.73, 1,525.20 and 400.50

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Solution

The fourth proportional to 1,016.73, 1,525.20 and 400.50 is: 600.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.73 : 1,525.20 = 400.50 : x
  2. Step 2: Convert to fraction form
    1,016.73/1,525.20 = 400.50/x
  3. Step 3: Cross multiply
    1,016.73x = 1,525.20 × 400.50
  4. Step 4: Simplify right side
    1,016.73x = 610,842.60
  5. Step 5: Solve for x
    x = 610,842.60/1,016.73
  6. Step 6: Final answer
    x = 600.79

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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.