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Finding the Fourth Proportional to 559.68, 770.12 and 543.64

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Solution

The fourth proportional to 559.68, 770.12 and 543.64 is: 748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.68 : 770.12 = 543.64 : x
  2. Step 2: Convert to fraction form
    559.68/770.12 = 543.64/x
  3. Step 3: Cross multiply
    559.68x = 770.12 × 543.64
  4. Step 4: Simplify right side
    559.68x = 418,668.04
  5. Step 5: Solve for x
    x = 418,668.04/559.68
  6. Step 6: Final answer
    x = 748.05

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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.