Home / 1,016.28-1,403.52-623.58

Finding the Fourth Proportional to 1,016.28, 1,403.52 and 623.58

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Solution

The fourth proportional to 1,016.28, 1,403.52 and 623.58 is: 861.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.28 : 1,403.52 = 623.58 : x
  2. Step 2: Convert to fraction form
    1,016.28/1,403.52 = 623.58/x
  3. Step 3: Cross multiply
    1,016.28x = 1,403.52 × 623.58
  4. Step 4: Simplify right side
    1,016.28x = 875,207.00
  5. Step 5: Solve for x
    x = 875,207.00/1,016.28
  6. Step 6: Final answer
    x = 861.19

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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.