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Finding the Fourth Proportional to 406,492.80, 609,519.24 and 322,791.44

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Solution

The fourth proportional to 406,492.80, 609,519.24 and 322,791.44 is: 484,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,492.80 : 609,519.24 = 322,791.44 : x
  2. Step 2: Convert to fraction form
    406,492.80/609,519.24 = 322,791.44/x
  3. Step 3: Cross multiply
    406,492.80x = 609,519.24 × 322,791.44
  4. Step 4: Simplify right side
    406,492.80x = 196,747,593,187.31
  5. Step 5: Solve for x
    x = 196,747,593,187.31/406,492.80
  6. Step 6: Final answer
    x = 484,012.49

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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.