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Finding the Fourth Proportional to 844.45, 1,165.45 and 495.13

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Solution

The fourth proportional to 844.45, 1,165.45 and 495.13 is: 683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.45 : 1,165.45 = 495.13 : x
  2. Step 2: Convert to fraction form
    844.45/1,165.45 = 495.13/x
  3. Step 3: Cross multiply
    844.45x = 1,165.45 × 495.13
  4. Step 4: Simplify right side
    844.45x = 577,049.26
  5. Step 5: Solve for x
    x = 577,049.26/844.45
  6. Step 6: Final answer
    x = 683.34

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Half scale
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Double scale
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1.5x scale

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.