Home / 1,050.65-1,576.21-320.17

Finding the Fourth Proportional to 1,050.65, 1,576.21 and 320.17

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Solution

The fourth proportional to 1,050.65, 1,576.21 and 320.17 is: 480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.65 : 1,576.21 = 320.17 : x
  2. Step 2: Convert to fraction form
    1,050.65/1,576.21 = 320.17/x
  3. Step 3: Cross multiply
    1,050.65x = 1,576.21 × 320.17
  4. Step 4: Simplify right side
    1,050.65x = 504,653.97
  5. Step 5: Solve for x
    x = 504,653.97/1,050.65
  6. Step 6: Final answer
    x = 480.33

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Double scale
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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.