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Finding the Fourth Proportional to 520.44, 717.60 and 426.84

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Solution

The fourth proportional to 520.44, 717.60 and 426.84 is: 588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.44 : 717.60 = 426.84 : x
  2. Step 2: Convert to fraction form
    520.44/717.60 = 426.84/x
  3. Step 3: Cross multiply
    520.44x = 717.60 × 426.84
  4. Step 4: Simplify right side
    520.44x = 306,300.38
  5. Step 5: Solve for x
    x = 306,300.38/520.44
  6. Step 6: Final answer
    x = 588.54

Related Problems

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1.5x scale

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.