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Finding the Fourth Proportional to 496,522.80, 685,110.80 and 324,394.97

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Solution

The fourth proportional to 496,522.80, 685,110.80 and 324,394.97 is: 447,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,522.80 : 685,110.80 = 324,394.97 : x
  2. Step 2: Convert to fraction form
    496,522.80/685,110.80 = 324,394.97/x
  3. Step 3: Cross multiply
    496,522.80x = 685,110.80 × 324,394.97
  4. Step 4: Simplify right side
    496,522.80x = 222,246,492,365.15
  5. Step 5: Solve for x
    x = 222,246,492,365.15/496,522.80
  6. Step 6: Final answer
    x = 447,605.81

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1.5x scale

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.