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Finding the Fourth Proportional to 646.08, 887.25 and 552.83

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Solution

The fourth proportional to 646.08, 887.25 and 552.83 is: 759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.08 : 887.25 = 552.83 : x
  2. Step 2: Convert to fraction form
    646.08/887.25 = 552.83/x
  3. Step 3: Cross multiply
    646.08x = 887.25 × 552.83
  4. Step 4: Simplify right side
    646.08x = 490,496.05
  5. Step 5: Solve for x
    x = 490,496.05/646.08
  6. Step 6: Final answer
    x = 759.19

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.