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Finding the Fourth Proportional to 606.84, 911.16 and 538.50

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Solution

The fourth proportional to 606.84, 911.16 and 538.50 is: 808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.84 : 911.16 = 538.50 : x
  2. Step 2: Convert to fraction form
    606.84/911.16 = 538.50/x
  3. Step 3: Cross multiply
    606.84x = 911.16 × 538.50
  4. Step 4: Simplify right side
    606.84x = 490,659.66
  5. Step 5: Solve for x
    x = 490,659.66/606.84
  6. Step 6: Final answer
    x = 808.55

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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.