Home / 927.03-1,391.23-440.09

Finding the Fourth Proportional to 927.03, 1,391.23 and 440.09

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Solution

The fourth proportional to 927.03, 1,391.23 and 440.09 is: 660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.03 : 1,391.23 = 440.09 : x
  2. Step 2: Convert to fraction form
    927.03/1,391.23 = 440.09/x
  3. Step 3: Cross multiply
    927.03x = 1,391.23 × 440.09
  4. Step 4: Simplify right side
    927.03x = 612,266.41
  5. Step 5: Solve for x
    x = 612,266.41/927.03
  6. Step 6: Final answer
    x = 660.46

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Double scale
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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.