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Finding the Fourth Proportional to 575.69, 859.98 and 517.82

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Solution

The fourth proportional to 575.69, 859.98 and 517.82 is: 773.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.69 : 859.98 = 517.82 : x
  2. Step 2: Convert to fraction form
    575.69/859.98 = 517.82/x
  3. Step 3: Cross multiply
    575.69x = 859.98 × 517.82
  4. Step 4: Simplify right side
    575.69x = 445,312.25
  5. Step 5: Solve for x
    x = 445,312.25/575.69
  6. Step 6: Final answer
    x = 773.53

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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.