Home / 792,021.46-1,187,755.71-318,584.02

Finding the Fourth Proportional to 792,021.46, 1,187,755.71 and 318,584.02

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Solution

The fourth proportional to 792,021.46, 1,187,755.71 and 318,584.02 is: 477,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,021.46 : 1,187,755.71 = 318,584.02 : x
  2. Step 2: Convert to fraction form
    792,021.46/1,187,755.71 = 318,584.02/x
  3. Step 3: Cross multiply
    792,021.46x = 1,187,755.71 × 318,584.02
  4. Step 4: Simplify right side
    792,021.46x = 378,399,988,869.75
  5. Step 5: Solve for x
    x = 378,399,988,869.75/792,021.46
  6. Step 6: Final answer
    x = 477,764.82

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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.