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Finding the Fourth Proportional to 406,396.44, 609,372.45 and 322,694.28

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Solution

The fourth proportional to 406,396.44, 609,372.45 and 322,694.28 is: 483,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,396.44 : 609,372.45 = 322,694.28 : x
  2. Step 2: Convert to fraction form
    406,396.44/609,372.45 = 322,694.28/x
  3. Step 3: Cross multiply
    406,396.44x = 609,372.45 × 322,694.28
  4. Step 4: Simplify right side
    406,396.44x = 196,641,004,004.59
  5. Step 5: Solve for x
    x = 196,641,004,004.59/406,396.44
  6. Step 6: Final answer
    x = 483,864.98

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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.