Home / 1,029.10-1,541.93-480.94

Finding the Fourth Proportional to 1,029.10, 1,541.93 and 480.94

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Solution

The fourth proportional to 1,029.10, 1,541.93 and 480.94 is: 720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.10 : 1,541.93 = 480.94 : x
  2. Step 2: Convert to fraction form
    1,029.10/1,541.93 = 480.94/x
  3. Step 3: Cross multiply
    1,029.10x = 1,541.93 × 480.94
  4. Step 4: Simplify right side
    1,029.10x = 741,575.81
  5. Step 5: Solve for x
    x = 741,575.81/1,029.10
  6. Step 6: Final answer
    x = 720.61

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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.