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Finding the Fourth Proportional to 632.44, 874.43 and 623.13

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Solution

The fourth proportional to 632.44, 874.43 and 623.13 is: 861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.44 : 874.43 = 623.13 : x
  2. Step 2: Convert to fraction form
    632.44/874.43 = 623.13/x
  3. Step 3: Cross multiply
    632.44x = 874.43 × 623.13
  4. Step 4: Simplify right side
    632.44x = 544,879.51
  5. Step 5: Solve for x
    x = 544,879.51/632.44
  6. Step 6: Final answer
    x = 861.55

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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.