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Finding the Fourth Proportional to 527.27, 791.01 and 430.63

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Solution

The fourth proportional to 527.27, 791.01 and 430.63 is: 646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.27 : 791.01 = 430.63 : x
  2. Step 2: Convert to fraction form
    527.27/791.01 = 430.63/x
  3. Step 3: Cross multiply
    527.27x = 791.01 × 430.63
  4. Step 4: Simplify right side
    527.27x = 340,630.66
  5. Step 5: Solve for x
    x = 340,630.66/527.27
  6. Step 6: Final answer
    x = 646.03

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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.