Home / 874,366.44-1,206,687.48-487,207.56

Finding the Fourth Proportional to 874,366.44, 1,206,687.48 and 487,207.56

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Solution

The fourth proportional to 874,366.44, 1,206,687.48 and 487,207.56 is: 672,380.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,366.44 : 1,206,687.48 = 487,207.56 : x
  2. Step 2: Convert to fraction form
    874,366.44/1,206,687.48 = 487,207.56/x
  3. Step 3: Cross multiply
    874,366.44x = 1,206,687.48 × 487,207.56
  4. Step 4: Simplify right side
    874,366.44x = 587,907,262,813.35
  5. Step 5: Solve for x
    x = 587,907,262,813.35/874,366.44
  6. Step 6: Final answer
    x = 672,380.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.