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Finding the Fourth Proportional to 436.60, 598.97 and 404.20

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Solution

The fourth proportional to 436.60, 598.97 and 404.20 is: 554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.60 : 598.97 = 404.20 : x
  2. Step 2: Convert to fraction form
    436.60/598.97 = 404.20/x
  3. Step 3: Cross multiply
    436.60x = 598.97 × 404.20
  4. Step 4: Simplify right side
    436.60x = 242,103.67
  5. Step 5: Solve for x
    x = 242,103.67/436.60
  6. Step 6: Final answer
    x = 554.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.