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Finding the Fourth Proportional to 546.92, 815.77 and 459.23

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Solution

The fourth proportional to 546.92, 815.77 and 459.23 is: 684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.92 : 815.77 = 459.23 : x
  2. Step 2: Convert to fraction form
    546.92/815.77 = 459.23/x
  3. Step 3: Cross multiply
    546.92x = 815.77 × 459.23
  4. Step 4: Simplify right side
    546.92x = 374,623.76
  5. Step 5: Solve for x
    x = 374,623.76/546.92
  6. Step 6: Final answer
    x = 684.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.