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Finding the Fourth Proportional to 558.26, 830.33 and 547.32

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Solution

The fourth proportional to 558.26, 830.33 and 547.32 is: 814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.26 : 830.33 = 547.32 : x
  2. Step 2: Convert to fraction form
    558.26/830.33 = 547.32/x
  3. Step 3: Cross multiply
    558.26x = 830.33 × 547.32
  4. Step 4: Simplify right side
    558.26x = 454,456.22
  5. Step 5: Solve for x
    x = 454,456.22/558.26
  6. Step 6: Final answer
    x = 814.06

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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.