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Finding the Fourth Proportional to 382,520.79, 573,659.01 and 126,296.37

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Solution

The fourth proportional to 382,520.79, 573,659.01 and 126,296.37 is: 189,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,520.79 : 573,659.01 = 126,296.37 : x
  2. Step 2: Convert to fraction form
    382,520.79/573,659.01 = 126,296.37/x
  3. Step 3: Cross multiply
    382,520.79x = 573,659.01 × 126,296.37
  4. Step 4: Simplify right side
    382,520.79x = 72,451,050,580.79
  5. Step 5: Solve for x
    x = 72,451,050,580.79/382,520.79
  6. Step 6: Final answer
    x = 189,404.22

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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.