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Finding the Fourth Proportional to 625.05, 942.48 and 544.86

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Solution

The fourth proportional to 625.05, 942.48 and 544.86 is: 821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.05 : 942.48 = 544.86 : x
  2. Step 2: Convert to fraction form
    625.05/942.48 = 544.86/x
  3. Step 3: Cross multiply
    625.05x = 942.48 × 544.86
  4. Step 4: Simplify right side
    625.05x = 513,519.65
  5. Step 5: Solve for x
    x = 513,519.65/625.05
  6. Step 6: Final answer
    x = 821.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.