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Finding the Fourth Proportional to 324,620, 486,776.73 and 189,722.75

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Solution

The fourth proportional to 324,620, 486,776.73 and 189,722.75 is: 284,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,620 : 486,776.73 = 189,722.75 : x
  2. Step 2: Convert to fraction form
    324,620/486,776.73 = 189,722.75/x
  3. Step 3: Cross multiply
    324,620x = 486,776.73 × 189,722.75
  4. Step 4: Simplify right side
    324,620x = 92,352,619,851.61
  5. Step 5: Solve for x
    x = 92,352,619,851.61/324,620
  6. Step 6: Final answer
    x = 284,494.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.