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Finding the Fourth Proportional to 1,016.13, 1,524.17 and 399.39

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Solution

The fourth proportional to 1,016.13, 1,524.17 and 399.39 is: 599.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.13 : 1,524.17 = 399.39 : x
  2. Step 2: Convert to fraction form
    1,016.13/1,524.17 = 399.39/x
  3. Step 3: Cross multiply
    1,016.13x = 1,524.17 × 399.39
  4. Step 4: Simplify right side
    1,016.13x = 608,736.26
  5. Step 5: Solve for x
    x = 608,736.26/1,016.13
  6. Step 6: Final answer
    x = 599.07

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1.5x scale

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.