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Finding the Fourth Proportional to 622.60, 857.16 and 544.92

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Solution

The fourth proportional to 622.60, 857.16 and 544.92 is: 750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.60 : 857.16 = 544.92 : x
  2. Step 2: Convert to fraction form
    622.60/857.16 = 544.92/x
  3. Step 3: Cross multiply
    622.60x = 857.16 × 544.92
  4. Step 4: Simplify right side
    622.60x = 467,083.63
  5. Step 5: Solve for x
    x = 467,083.63/622.60
  6. Step 6: Final answer
    x = 750.21

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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.