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Finding the Fourth Proportional to 602.39, 899.26 and 575.79

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Solution

The fourth proportional to 602.39, 899.26 and 575.79 is: 859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.39 : 899.26 = 575.79 : x
  2. Step 2: Convert to fraction form
    602.39/899.26 = 575.79/x
  3. Step 3: Cross multiply
    602.39x = 899.26 × 575.79
  4. Step 4: Simplify right side
    602.39x = 517,785.64
  5. Step 5: Solve for x
    x = 517,785.64/602.39
  6. Step 6: Final answer
    x = 859.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.