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Finding the Fourth Proportional to 573, 790.94 and 386.37

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Solution

The fourth proportional to 573, 790.94 and 386.37 is: 533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    573 : 790.94 = 386.37 : x
  2. Step 2: Convert to fraction form
    573/790.94 = 386.37/x
  3. Step 3: Cross multiply
    573x = 790.94 × 386.37
  4. Step 4: Simplify right side
    573x = 305,593.56
  5. Step 5: Solve for x
    x = 305,593.56/573
  6. Step 6: Final answer
    x = 533.32

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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.