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Finding the Fourth Proportional to 479,698.07, 661,984.31 and 264,838.55

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Solution

The fourth proportional to 479,698.07, 661,984.31 and 264,838.55 is: 365,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,698.07 : 661,984.31 = 264,838.55 : x
  2. Step 2: Convert to fraction form
    479,698.07/661,984.31 = 264,838.55/x
  3. Step 3: Cross multiply
    479,698.07x = 661,984.31 × 264,838.55
  4. Step 4: Simplify right side
    479,698.07x = 175,318,962,135.33
  5. Step 5: Solve for x
    x = 175,318,962,135.33/479,698.07
  6. Step 6: Final answer
    x = 365,477.73

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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.