Home / 705,127.98-1,055,353.05-642,093.78

Finding the Fourth Proportional to 705,127.98, 1,055,353.05 and 642,093.78

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Solution

The fourth proportional to 705,127.98, 1,055,353.05 and 642,093.78 is: 961,010.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,127.98 : 1,055,353.05 = 642,093.78 : x
  2. Step 2: Convert to fraction form
    705,127.98/1,055,353.05 = 642,093.78/x
  3. Step 3: Cross multiply
    705,127.98x = 1,055,353.05 × 642,093.78
  4. Step 4: Simplify right side
    705,127.98x = 677,635,629,109.03
  5. Step 5: Solve for x
    x = 677,635,629,109.03/705,127.98
  6. Step 6: Final answer
    x = 961,010.84

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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.