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Finding the Fourth Proportional to 572.51, 794.39 and 549.38

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Solution

The fourth proportional to 572.51, 794.39 and 549.38 is: 762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.51 : 794.39 = 549.38 : x
  2. Step 2: Convert to fraction form
    572.51/794.39 = 549.38/x
  3. Step 3: Cross multiply
    572.51x = 794.39 × 549.38
  4. Step 4: Simplify right side
    572.51x = 436,415.26
  5. Step 5: Solve for x
    x = 436,415.26/572.51
  6. Step 6: Final answer
    x = 762.28

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.