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Finding the Fourth Proportional to 572.94, 861.21 and 544.14

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Solution

The fourth proportional to 572.94, 861.21 and 544.14 is: 817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.94 : 861.21 = 544.14 : x
  2. Step 2: Convert to fraction form
    572.94/861.21 = 544.14/x
  3. Step 3: Cross multiply
    572.94x = 861.21 × 544.14
  4. Step 4: Simplify right side
    572.94x = 468,618.81
  5. Step 5: Solve for x
    x = 468,618.81/572.94
  6. Step 6: Final answer
    x = 817.92

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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.