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Finding the Fourth Proportional to 613.80, 925.79 and 573.30

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Solution

The fourth proportional to 613.80, 925.79 and 573.30 is: 864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.80 : 925.79 = 573.30 : x
  2. Step 2: Convert to fraction form
    613.80/925.79 = 573.30/x
  3. Step 3: Cross multiply
    613.80x = 925.79 × 573.30
  4. Step 4: Simplify right side
    613.80x = 530,752.54
  5. Step 5: Solve for x
    x = 530,752.54/613.80
  6. Step 6: Final answer
    x = 864.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.