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Finding the Fourth Proportional to 527.07, 793.36 and 447.80

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Solution

The fourth proportional to 527.07, 793.36 and 447.80 is: 674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.07 : 793.36 = 447.80 : x
  2. Step 2: Convert to fraction form
    527.07/793.36 = 447.80/x
  3. Step 3: Cross multiply
    527.07x = 793.36 × 447.80
  4. Step 4: Simplify right side
    527.07x = 355,260.40
  5. Step 5: Solve for x
    x = 355,260.40/527.07
  6. Step 6: Final answer
    x = 674.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.