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Finding the Fourth Proportional to 606.69, 911.86 and 533.79

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Solution

The fourth proportional to 606.69, 911.86 and 533.79 is: 802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.69 : 911.86 = 533.79 : x
  2. Step 2: Convert to fraction form
    606.69/911.86 = 533.79/x
  3. Step 3: Cross multiply
    606.69x = 911.86 × 533.79
  4. Step 4: Simplify right side
    606.69x = 486,740.41
  5. Step 5: Solve for x
    x = 486,740.41/606.69
  6. Step 6: Final answer
    x = 802.29

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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.