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Finding the Fourth Proportional to 580.49, 799.38 and 543.43

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Solution

The fourth proportional to 580.49, 799.38 and 543.43 is: 748.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.49 : 799.38 = 543.43 : x
  2. Step 2: Convert to fraction form
    580.49/799.38 = 543.43/x
  3. Step 3: Cross multiply
    580.49x = 799.38 × 543.43
  4. Step 4: Simplify right side
    580.49x = 434,407.07
  5. Step 5: Solve for x
    x = 434,407.07/580.49
  6. Step 6: Final answer
    x = 748.35

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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.