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Finding the Fourth Proportional to 560.12, 770.82 and 543.96

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Solution

The fourth proportional to 560.12, 770.82 and 543.96 is: 748.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.12 : 770.82 = 543.96 : x
  2. Step 2: Convert to fraction form
    560.12/770.82 = 543.96/x
  3. Step 3: Cross multiply
    560.12x = 770.82 × 543.96
  4. Step 4: Simplify right side
    560.12x = 419,295.25
  5. Step 5: Solve for x
    x = 419,295.25/560.12
  6. Step 6: Final answer
    x = 748.58

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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.