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Finding the Fourth Proportional to 886.08, 1,222.53 and 554.52

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Solution

The fourth proportional to 886.08, 1,222.53 and 554.52 is: 765.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.08 : 1,222.53 = 554.52 : x
  2. Step 2: Convert to fraction form
    886.08/1,222.53 = 554.52/x
  3. Step 3: Cross multiply
    886.08x = 1,222.53 × 554.52
  4. Step 4: Simplify right side
    886.08x = 677,917.34
  5. Step 5: Solve for x
    x = 677,917.34/886.08
  6. Step 6: Final answer
    x = 765.07

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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.