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Finding the Fourth Proportional to 406,550.44, 609,922.56 and 140,313.28

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Solution

The fourth proportional to 406,550.44, 609,922.56 and 140,313.28 is: 210,503.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,550.44 : 609,922.56 = 140,313.28 : x
  2. Step 2: Convert to fraction form
    406,550.44/609,922.56 = 140,313.28/x
  3. Step 3: Cross multiply
    406,550.44x = 609,922.56 × 140,313.28
  4. Step 4: Simplify right side
    406,550.44x = 85,580,234,939.60
  5. Step 5: Solve for x
    x = 85,580,234,939.60/406,550.44
  6. Step 6: Final answer
    x = 210,503.36

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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.