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Finding the Fourth Proportional to 546.09, 751.86 and 518.73

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Solution

The fourth proportional to 546.09, 751.86 and 518.73 is: 714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.09 : 751.86 = 518.73 : x
  2. Step 2: Convert to fraction form
    546.09/751.86 = 518.73/x
  3. Step 3: Cross multiply
    546.09x = 751.86 × 518.73
  4. Step 4: Simplify right side
    546.09x = 390,012.34
  5. Step 5: Solve for x
    x = 390,012.34/546.09
  6. Step 6: Final answer
    x = 714.19

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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.