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Finding the Fourth Proportional to 549.79, 826.07 and 499.23

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Solution

The fourth proportional to 549.79, 826.07 and 499.23 is: 750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.79 : 826.07 = 499.23 : x
  2. Step 2: Convert to fraction form
    549.79/826.07 = 499.23/x
  3. Step 3: Cross multiply
    549.79x = 826.07 × 499.23
  4. Step 4: Simplify right side
    549.79x = 412,396.43
  5. Step 5: Solve for x
    x = 412,396.43/549.79
  6. Step 6: Final answer
    x = 750.10

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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.