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Finding the Fourth Proportional to 620.54, 855.70 and 532.33

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Solution

The fourth proportional to 620.54, 855.70 and 532.33 is: 734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.54 : 855.70 = 532.33 : x
  2. Step 2: Convert to fraction form
    620.54/855.70 = 532.33/x
  3. Step 3: Cross multiply
    620.54x = 855.70 × 532.33
  4. Step 4: Simplify right side
    620.54x = 455,514.78
  5. Step 5: Solve for x
    x = 455,514.78/620.54
  6. Step 6: Final answer
    x = 734.06

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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.