Home / 394,811.20-592,362.60-380,231.20

Finding the Fourth Proportional to 394,811.20, 592,362.60 and 380,231.20

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Solution

The fourth proportional to 394,811.20, 592,362.60 and 380,231.20 is: 570,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,811.20 : 592,362.60 = 380,231.20 : x
  2. Step 2: Convert to fraction form
    394,811.20/592,362.60 = 380,231.20/x
  3. Step 3: Cross multiply
    394,811.20x = 592,362.60 × 380,231.20
  4. Step 4: Simplify right side
    394,811.20x = 225,234,742,233.12
  5. Step 5: Solve for x
    x = 225,234,742,233.12/394,811.20
  6. Step 6: Final answer
    x = 570,487.22

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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.