Home / 496,764.90-685,538.84-281,908.55

Finding the Fourth Proportional to 496,764.90, 685,538.84 and 281,908.55

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Solution

The fourth proportional to 496,764.90, 685,538.84 and 281,908.55 is: 389,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,764.90 : 685,538.84 = 281,908.55 : x
  2. Step 2: Convert to fraction form
    496,764.90/685,538.84 = 281,908.55/x
  3. Step 3: Cross multiply
    496,764.90x = 685,538.84 × 281,908.55
  4. Step 4: Simplify right side
    496,764.90x = 193,259,262,771.70
  5. Step 5: Solve for x
    x = 193,259,262,771.70/496,764.90
  6. Step 6: Final answer
    x = 389,035.66

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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.