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Finding the Fourth Proportional to 479,636.39, 661,880.86 and 264,771.84

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Solution

The fourth proportional to 479,636.39, 661,880.86 and 264,771.84 is: 365,375.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,636.39 : 661,880.86 = 264,771.84 : x
  2. Step 2: Convert to fraction form
    479,636.39/661,880.86 = 264,771.84/x
  3. Step 3: Cross multiply
    479,636.39x = 661,880.86 × 264,771.84
  4. Step 4: Simplify right side
    479,636.39x = 175,247,411,011.89
  5. Step 5: Solve for x
    x = 175,247,411,011.89/479,636.39
  6. Step 6: Final answer
    x = 365,375.56

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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.