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Finding the Fourth Proportional to 602.10, 830.78 and 573.74

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Solution

The fourth proportional to 602.10, 830.78 and 573.74 is: 791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.10 : 830.78 = 573.74 : x
  2. Step 2: Convert to fraction form
    602.10/830.78 = 573.74/x
  3. Step 3: Cross multiply
    602.10x = 830.78 × 573.74
  4. Step 4: Simplify right side
    602.10x = 476,651.72
  5. Step 5: Solve for x
    x = 476,651.72/602.10
  6. Step 6: Final answer
    x = 791.65

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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.