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Finding the Fourth Proportional to 605.56, 833.88 and 527.80

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Solution

The fourth proportional to 605.56, 833.88 and 527.80 is: 726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.56 : 833.88 = 527.80 : x
  2. Step 2: Convert to fraction form
    605.56/833.88 = 527.80/x
  3. Step 3: Cross multiply
    605.56x = 833.88 × 527.80
  4. Step 4: Simplify right side
    605.56x = 440,121.86
  5. Step 5: Solve for x
    x = 440,121.86/605.56
  6. Step 6: Final answer
    x = 726.80

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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.