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Finding the Fourth Proportional to 527.58, 789.01 and 396.12

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Solution

The fourth proportional to 527.58, 789.01 and 396.12 is: 592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.58 : 789.01 = 396.12 : x
  2. Step 2: Convert to fraction form
    527.58/789.01 = 396.12/x
  3. Step 3: Cross multiply
    527.58x = 789.01 × 396.12
  4. Step 4: Simplify right side
    527.58x = 312,544.61
  5. Step 5: Solve for x
    x = 312,544.61/527.58
  6. Step 6: Final answer
    x = 592.41

Related Problems

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Double scale
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1.5x scale

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.