Home / 828,978.70-1,243,467.96-229,939.88

Finding the Fourth Proportional to 828,978.70, 1,243,467.96 and 229,939.88

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Solution

The fourth proportional to 828,978.70, 1,243,467.96 and 229,939.88 is: 344,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,978.70 : 1,243,467.96 = 229,939.88 : x
  2. Step 2: Convert to fraction form
    828,978.70/1,243,467.96 = 229,939.88/x
  3. Step 3: Cross multiply
    828,978.70x = 1,243,467.96 × 229,939.88
  4. Step 4: Simplify right side
    828,978.70x = 285,922,875,361.26
  5. Step 5: Solve for x
    x = 285,922,875,361.26/828,978.70
  6. Step 6: Final answer
    x = 344,909.80

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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.