Home / 394,632.80-591,992.40-382,191.20

Finding the Fourth Proportional to 394,632.80, 591,992.40 and 382,191.20

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Solution

The fourth proportional to 394,632.80, 591,992.40 and 382,191.20 is: 573,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,632.80 : 591,992.40 = 382,191.20 : x
  2. Step 2: Convert to fraction form
    394,632.80/591,992.40 = 382,191.20/x
  3. Step 3: Cross multiply
    394,632.80x = 591,992.40 × 382,191.20
  4. Step 4: Simplify right side
    394,632.80x = 226,254,285,746.88
  5. Step 5: Solve for x
    x = 226,254,285,746.88/394,632.80
  6. Step 6: Final answer
    x = 573,328.64

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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.