Home / 544,021.20-815,837.40-189,046.80

Finding the Fourth Proportional to 544,021.20, 815,837.40 and 189,046.80

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Solution

The fourth proportional to 544,021.20, 815,837.40 and 189,046.80 is: 283,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,021.20 : 815,837.40 = 189,046.80 : x
  2. Step 2: Convert to fraction form
    544,021.20/815,837.40 = 189,046.80/x
  3. Step 3: Cross multiply
    544,021.20x = 815,837.40 × 189,046.80
  4. Step 4: Simplify right side
    544,021.20x = 154,231,449,790.32
  5. Step 5: Solve for x
    x = 154,231,449,790.32/544,021.20
  6. Step 6: Final answer
    x = 283,502.65

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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.