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Finding the Fourth Proportional to 409,879.20, 614,818.80 and 335,083.80

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Solution

The fourth proportional to 409,879.20, 614,818.80 and 335,083.80 is: 502,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,879.20 : 614,818.80 = 335,083.80 : x
  2. Step 2: Convert to fraction form
    409,879.20/614,818.80 = 335,083.80/x
  3. Step 3: Cross multiply
    409,879.20x = 614,818.80 × 335,083.80
  4. Step 4: Simplify right side
    409,879.20x = 206,015,819,815.44
  5. Step 5: Solve for x
    x = 206,015,819,815.44/409,879.20
  6. Step 6: Final answer
    x = 502,625.70

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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.