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Finding the Fourth Proportional to 876.22, 1,307.27 and 844.32

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Solution

The fourth proportional to 876.22, 1,307.27 and 844.32 is: 1,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    876.22 : 1,307.27 = 844.32 : x
  2. Step 2: Convert to fraction form
    876.22/1,307.27 = 844.32/x
  3. Step 3: Cross multiply
    876.22x = 1,307.27 × 844.32
  4. Step 4: Simplify right side
    876.22x = 1,103,745.08
  5. Step 5: Solve for x
    x = 1,103,745.08/876.22
  6. Step 6: Final answer
    x = 1,259.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.