Home / 1,378,268.88-2,063,519.64-1,040,234.28

Finding the Fourth Proportional to 1,378,268.88, 2,063,519.64 and 1,040,234.28

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Solution

The fourth proportional to 1,378,268.88, 2,063,519.64 and 1,040,234.28 is: 1,557,420.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,268.88 : 2,063,519.64 = 1,040,234.28 : x
  2. Step 2: Convert to fraction form
    1,378,268.88/2,063,519.64 = 1,040,234.28/x
  3. Step 3: Cross multiply
    1,378,268.88x = 2,063,519.64 × 1,040,234.28
  4. Step 4: Simplify right side
    1,378,268.88x = 2,146,543,866,981.26
  5. Step 5: Solve for x
    x = 2,146,543,866,981.26/1,378,268.88
  6. Step 6: Final answer
    x = 1,557,420.25

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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.