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Finding the Fourth Proportional to 479,642.14, 661,888.78 and 264,777.59

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Solution

The fourth proportional to 479,642.14, 661,888.78 and 264,777.59 is: 365,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,642.14 : 661,888.78 = 264,777.59 : x
  2. Step 2: Convert to fraction form
    479,642.14/661,888.78 = 264,777.59/x
  3. Step 3: Cross multiply
    479,642.14x = 661,888.78 × 264,777.59
  4. Step 4: Simplify right side
    479,642.14x = 175,253,316,016.44
  5. Step 5: Solve for x
    x = 175,253,316,016.44/479,642.14
  6. Step 6: Final answer
    x = 365,383.48

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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.