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Finding the Fourth Proportional to 479,558.75, 661,791.11 and 264,698.87

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Solution

The fourth proportional to 479,558.75, 661,791.11 and 264,698.87 is: 365,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,558.75 : 661,791.11 = 264,698.87 : x
  2. Step 2: Convert to fraction form
    479,558.75/661,791.11 = 264,698.87/x
  3. Step 3: Cross multiply
    479,558.75x = 661,791.11 × 264,698.87
  4. Step 4: Simplify right side
    479,558.75x = 175,175,354,360.60
  5. Step 5: Solve for x
    x = 175,175,354,360.60/479,558.75
  6. Step 6: Final answer
    x = 365,284.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.