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Finding the Fourth Proportional to 575.79, 863.16 and 558.36

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Solution

The fourth proportional to 575.79, 863.16 and 558.36 is: 837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.79 : 863.16 = 558.36 : x
  2. Step 2: Convert to fraction form
    575.79/863.16 = 558.36/x
  3. Step 3: Cross multiply
    575.79x = 863.16 × 558.36
  4. Step 4: Simplify right side
    575.79x = 481,954.02
  5. Step 5: Solve for x
    x = 481,954.02/575.79
  6. Step 6: Final answer
    x = 837.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.