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Finding the Fourth Proportional to 599.68, 826.72 and 494.40

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Solution

The fourth proportional to 599.68, 826.72 and 494.40 is: 681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.68 : 826.72 = 494.40 : x
  2. Step 2: Convert to fraction form
    599.68/826.72 = 494.40/x
  3. Step 3: Cross multiply
    599.68x = 826.72 × 494.40
  4. Step 4: Simplify right side
    599.68x = 408,730.37
  5. Step 5: Solve for x
    x = 408,730.37/599.68
  6. Step 6: Final answer
    x = 681.58

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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.