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Finding the Fourth Proportional to 383,040.80, 573,200.40 and 333,663.20

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Solution

The fourth proportional to 383,040.80, 573,200.40 and 333,663.20 is: 499,309.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,040.80 : 573,200.40 = 333,663.20 : x
  2. Step 2: Convert to fraction form
    383,040.80/573,200.40 = 333,663.20/x
  3. Step 3: Cross multiply
    383,040.80x = 573,200.40 × 333,663.20
  4. Step 4: Simplify right side
    383,040.80x = 191,255,879,705.28
  5. Step 5: Solve for x
    x = 191,255,879,705.28/383,040.80
  6. Step 6: Final answer
    x = 499,309.42

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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.