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Finding the Fourth Proportional to 479,646.05, 661,907.49 and 264,781.50

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Solution

The fourth proportional to 479,646.05, 661,907.49 and 264,781.50 is: 365,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,646.05 : 661,907.49 = 264,781.50 : x
  2. Step 2: Convert to fraction form
    479,646.05/661,907.49 = 264,781.50/x
  3. Step 3: Cross multiply
    479,646.05x = 661,907.49 × 264,781.50
  4. Step 4: Simplify right side
    479,646.05x = 175,260,858,063.44
  5. Step 5: Solve for x
    x = 175,260,858,063.44/479,646.05
  6. Step 6: Final answer
    x = 365,396.23

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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.