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Finding the Fourth Proportional to 844.52, 1,165.44 and 777.50

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Solution

The fourth proportional to 844.52, 1,165.44 and 777.50 is: 1,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.52 : 1,165.44 = 777.50 : x
  2. Step 2: Convert to fraction form
    844.52/1,165.44 = 777.50/x
  3. Step 3: Cross multiply
    844.52x = 1,165.44 × 777.50
  4. Step 4: Simplify right side
    844.52x = 906,129.60
  5. Step 5: Solve for x
    x = 906,129.60/844.52
  6. Step 6: Final answer
    x = 1,072.95

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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.