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Finding the Fourth Proportional to 848.26, 1,169.85 and 627.76

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Solution

The fourth proportional to 848.26, 1,169.85 and 627.76 is: 865.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.26 : 1,169.85 = 627.76 : x
  2. Step 2: Convert to fraction form
    848.26/1,169.85 = 627.76/x
  3. Step 3: Cross multiply
    848.26x = 1,169.85 × 627.76
  4. Step 4: Simplify right side
    848.26x = 734,385.04
  5. Step 5: Solve for x
    x = 734,385.04/848.26
  6. Step 6: Final answer
    x = 865.75

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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.