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Finding the Fourth Proportional to 844.88, 1,165.86 and 495.50

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Solution

The fourth proportional to 844.88, 1,165.86 and 495.50 is: 683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.88 : 1,165.86 = 495.50 : x
  2. Step 2: Convert to fraction form
    844.88/1,165.86 = 495.50/x
  3. Step 3: Cross multiply
    844.88x = 1,165.86 × 495.50
  4. Step 4: Simplify right side
    844.88x = 577,683.63
  5. Step 5: Solve for x
    x = 577,683.63/844.88
  6. Step 6: Final answer
    x = 683.75

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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.