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Finding the Fourth Proportional to 556.79, 834.73 and 325.11

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Solution

The fourth proportional to 556.79, 834.73 and 325.11 is: 487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.79 : 834.73 = 325.11 : x
  2. Step 2: Convert to fraction form
    556.79/834.73 = 325.11/x
  3. Step 3: Cross multiply
    556.79x = 834.73 × 325.11
  4. Step 4: Simplify right side
    556.79x = 271,379.07
  5. Step 5: Solve for x
    x = 271,379.07/556.79
  6. Step 6: Final answer
    x = 487.40

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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.