Home / 750,043.97-1,035,063.41-405,879.87

Finding the Fourth Proportional to 750,043.97, 1,035,063.41 and 405,879.87

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Solution

The fourth proportional to 750,043.97, 1,035,063.41 and 405,879.87 is: 560,115.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,043.97 : 1,035,063.41 = 405,879.87 : x
  2. Step 2: Convert to fraction form
    750,043.97/1,035,063.41 = 405,879.87/x
  3. Step 3: Cross multiply
    750,043.97x = 1,035,063.41 × 405,879.87
  4. Step 4: Simplify right side
    750,043.97x = 420,111,395,087.84
  5. Step 5: Solve for x
    x = 420,111,395,087.84/750,043.97
  6. Step 6: Final answer
    x = 560,115.69

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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.