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Finding the Fourth Proportional to 573.01, 857.99 and 425.79

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Solution

The fourth proportional to 573.01, 857.99 and 425.79 is: 637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.01 : 857.99 = 425.79 : x
  2. Step 2: Convert to fraction form
    573.01/857.99 = 425.79/x
  3. Step 3: Cross multiply
    573.01x = 857.99 × 425.79
  4. Step 4: Simplify right side
    573.01x = 365,324.63
  5. Step 5: Solve for x
    x = 365,324.63/573.01
  6. Step 6: Final answer
    x = 637.56

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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.