Home / 703,999.20-1,055,998.80-405,400.80

Finding the Fourth Proportional to 703,999.20, 1,055,998.80 and 405,400.80

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Solution

The fourth proportional to 703,999.20, 1,055,998.80 and 405,400.80 is: 608,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,999.20 : 1,055,998.80 = 405,400.80 : x
  2. Step 2: Convert to fraction form
    703,999.20/1,055,998.80 = 405,400.80/x
  3. Step 3: Cross multiply
    703,999.20x = 1,055,998.80 × 405,400.80
  4. Step 4: Simplify right side
    703,999.20x = 428,102,758,319.04
  5. Step 5: Solve for x
    x = 428,102,758,319.04/703,999.20
  6. Step 6: Final answer
    x = 608,101.20

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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.