Home / 394,984.62-592,416.09-128,744.46

Finding the Fourth Proportional to 394,984.62, 592,416.09 and 128,744.46

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Solution

The fourth proportional to 394,984.62, 592,416.09 and 128,744.46 is: 193,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,984.62 : 592,416.09 = 128,744.46 : x
  2. Step 2: Convert to fraction form
    394,984.62/592,416.09 = 128,744.46/x
  3. Step 3: Cross multiply
    394,984.62x = 592,416.09 × 128,744.46
  4. Step 4: Simplify right side
    394,984.62x = 76,270,289,602.36
  5. Step 5: Solve for x
    x = 76,270,289,602.36/394,984.62
  6. Step 6: Final answer
    x = 193,096.86

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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.