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Finding the Fourth Proportional to 573.76, 855.88 and 519.04

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Solution

The fourth proportional to 573.76, 855.88 and 519.04 is: 774.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.76 : 855.88 = 519.04 : x
  2. Step 2: Convert to fraction form
    573.76/855.88 = 519.04/x
  3. Step 3: Cross multiply
    573.76x = 855.88 × 519.04
  4. Step 4: Simplify right side
    573.76x = 444,235.96
  5. Step 5: Solve for x
    x = 444,235.96/573.76
  6. Step 6: Final answer
    x = 774.25

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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.