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Finding the Fourth Proportional to 496,686, 685,426.68 and 270,333.12

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Solution

The fourth proportional to 496,686, 685,426.68 and 270,333.12 is: 373,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,686 : 685,426.68 = 270,333.12 : x
  2. Step 2: Convert to fraction form
    496,686/685,426.68 = 270,333.12/x
  3. Step 3: Cross multiply
    496,686x = 685,426.68 × 270,333.12
  4. Step 4: Simplify right side
    496,686x = 185,293,532,935.64
  5. Step 5: Solve for x
    x = 185,293,532,935.64/496,686
  6. Step 6: Final answer
    x = 373,059.71

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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.