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Finding the Fourth Proportional to 514.26, 708.08 and 440.40

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Solution

The fourth proportional to 514.26, 708.08 and 440.40 is: 606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.26 : 708.08 = 440.40 : x
  2. Step 2: Convert to fraction form
    514.26/708.08 = 440.40/x
  3. Step 3: Cross multiply
    514.26x = 708.08 × 440.40
  4. Step 4: Simplify right side
    514.26x = 311,838.43
  5. Step 5: Solve for x
    x = 311,838.43/514.26
  6. Step 6: Final answer
    x = 606.38

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Similar ratio
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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.