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Finding the Fourth Proportional to 635.67, 955.56 and 570.97

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Solution

The fourth proportional to 635.67, 955.56 and 570.97 is: 858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.67 : 955.56 = 570.97 : x
  2. Step 2: Convert to fraction form
    635.67/955.56 = 570.97/x
  3. Step 3: Cross multiply
    635.67x = 955.56 × 570.97
  4. Step 4: Simplify right side
    635.67x = 545,596.09
  5. Step 5: Solve for x
    x = 545,596.09/635.67
  6. Step 6: Final answer
    x = 858.30

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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.