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Finding the Fourth Proportional to 404,550.03, 607,004.10 and 212,379.26

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Solution

The fourth proportional to 404,550.03, 607,004.10 and 212,379.26 is: 318,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,550.03 : 607,004.10 = 212,379.26 : x
  2. Step 2: Convert to fraction form
    404,550.03/607,004.10 = 212,379.26/x
  3. Step 3: Cross multiply
    404,550.03x = 607,004.10 × 212,379.26
  4. Step 4: Simplify right side
    404,550.03x = 128,915,078,539.95
  5. Step 5: Solve for x
    x = 128,915,078,539.95/404,550.03
  6. Step 6: Final answer
    x = 318,662.88

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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.