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Finding the Fourth Proportional to 573.01, 789.01 and 448.47

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Solution

The fourth proportional to 573.01, 789.01 and 448.47 is: 617.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.01 : 789.01 = 448.47 : x
  2. Step 2: Convert to fraction form
    573.01/789.01 = 448.47/x
  3. Step 3: Cross multiply
    573.01x = 789.01 × 448.47
  4. Step 4: Simplify right side
    573.01x = 353,846.19
  5. Step 5: Solve for x
    x = 353,846.19/573.01
  6. Step 6: Final answer
    x = 617.52

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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.