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Finding the Fourth Proportional to 573.22, 854.93 and 487.12

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Solution

The fourth proportional to 573.22, 854.93 and 487.12 is: 726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.22 : 854.93 = 487.12 : x
  2. Step 2: Convert to fraction form
    573.22/854.93 = 487.12/x
  3. Step 3: Cross multiply
    573.22x = 854.93 × 487.12
  4. Step 4: Simplify right side
    573.22x = 416,453.50
  5. Step 5: Solve for x
    x = 416,453.50/573.22
  6. Step 6: Final answer
    x = 726.52

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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.