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Finding the Fourth Proportional to 558.93, 836.22 and 486.63

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Solution

The fourth proportional to 558.93, 836.22 and 486.63 is: 728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.93 : 836.22 = 486.63 : x
  2. Step 2: Convert to fraction form
    558.93/836.22 = 486.63/x
  3. Step 3: Cross multiply
    558.93x = 836.22 × 486.63
  4. Step 4: Simplify right side
    558.93x = 406,933.92
  5. Step 5: Solve for x
    x = 406,933.92/558.93
  6. Step 6: Final answer
    x = 728.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.