Home / 1,267,857.38-1,901,086.22-520,428.26

Finding the Fourth Proportional to 1,267,857.38, 1,901,086.22 and 520,428.26

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Solution

The fourth proportional to 1,267,857.38, 1,901,086.22 and 520,428.26 is: 780,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,857.38 : 1,901,086.22 = 520,428.26 : x
  2. Step 2: Convert to fraction form
    1,267,857.38/1,901,086.22 = 520,428.26/x
  3. Step 3: Cross multiply
    1,267,857.38x = 1,901,086.22 × 520,428.26
  4. Step 4: Simplify right side
    1,267,857.38x = 989,378,993,584.58
  5. Step 5: Solve for x
    x = 989,378,993,584.58/1,267,857.38
  6. Step 6: Final answer
    x = 780,355.12

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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.