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Finding the Fourth Proportional to 844.84, 1,165.80 and 495.48

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Solution

The fourth proportional to 844.84, 1,165.80 and 495.48 is: 683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.84 : 1,165.80 = 495.48 : x
  2. Step 2: Convert to fraction form
    844.84/1,165.80 = 495.48/x
  3. Step 3: Cross multiply
    844.84x = 1,165.80 × 495.48
  4. Step 4: Simplify right side
    844.84x = 577,630.58
  5. Step 5: Solve for x
    x = 577,630.58/844.84
  6. Step 6: Final answer
    x = 683.72

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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.