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Finding the Fourth Proportional to 520.04, 779.06 and 324.42

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Solution

The fourth proportional to 520.04, 779.06 and 324.42 is: 486.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.04 : 779.06 = 324.42 : x
  2. Step 2: Convert to fraction form
    520.04/779.06 = 324.42/x
  3. Step 3: Cross multiply
    520.04x = 779.06 × 324.42
  4. Step 4: Simplify right side
    520.04x = 252,742.65
  5. Step 5: Solve for x
    x = 252,742.65/520.04
  6. Step 6: Final answer
    x = 486.01

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Double scale
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Similar ratio
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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.