Home / 705,228.94-1,057,810.60-172,721.78

Finding the Fourth Proportional to 705,228.94, 1,057,810.60 and 172,721.78

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Solution

The fourth proportional to 705,228.94, 1,057,810.60 and 172,721.78 is: 259,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,228.94 : 1,057,810.60 = 172,721.78 : x
  2. Step 2: Convert to fraction form
    705,228.94/1,057,810.60 = 172,721.78/x
  3. Step 3: Cross multiply
    705,228.94x = 1,057,810.60 × 172,721.78
  4. Step 4: Simplify right side
    705,228.94x = 182,706,929,734.87
  5. Step 5: Solve for x
    x = 182,706,929,734.87/705,228.94
  6. Step 6: Final answer
    x = 259,074.63

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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.