Home / 1,378,201.50-1,901,918.07-774,589.50

Finding the Fourth Proportional to 1,378,201.50, 1,901,918.07 and 774,589.50

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Solution

The fourth proportional to 1,378,201.50, 1,901,918.07 and 774,589.50 is: 1,068,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,201.50 : 1,901,918.07 = 774,589.50 : x
  2. Step 2: Convert to fraction form
    1,378,201.50/1,901,918.07 = 774,589.50/x
  3. Step 3: Cross multiply
    1,378,201.50x = 1,901,918.07 × 774,589.50
  4. Step 4: Simplify right side
    1,378,201.50x = 1,473,205,766,882.27
  5. Step 5: Solve for x
    x = 1,473,205,766,882.27/1,378,201.50
  6. Step 6: Final answer
    x = 1,068,933.51

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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.