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Finding the Fourth Proportional to 479,665.67, 661,921.21 and 264,801.12

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Solution

The fourth proportional to 479,665.67, 661,921.21 and 264,801.12 is: 365,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,665.67 : 661,921.21 = 264,801.12 : x
  2. Step 2: Convert to fraction form
    479,665.67/661,921.21 = 264,801.12/x
  3. Step 3: Cross multiply
    479,665.67x = 661,921.21 × 264,801.12
  4. Step 4: Simplify right side
    479,665.67x = 175,277,477,759.76
  5. Step 5: Solve for x
    x = 175,277,477,759.76/479,665.67
  6. Step 6: Final answer
    x = 365,415.93

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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.