Home / 1,206,278.05-1,809,417.75-757,314.25

Finding the Fourth Proportional to 1,206,278.05, 1,809,417.75 and 757,314.25

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Solution

The fourth proportional to 1,206,278.05, 1,809,417.75 and 757,314.25 is: 1,135,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,278.05 : 1,809,417.75 = 757,314.25 : x
  2. Step 2: Convert to fraction form
    1,206,278.05/1,809,417.75 = 757,314.25/x
  3. Step 3: Cross multiply
    1,206,278.05x = 1,809,417.75 × 757,314.25
  4. Step 4: Simplify right side
    1,206,278.05x = 1,370,297,841,694.87
  5. Step 5: Solve for x
    x = 1,370,297,841,694.87/1,206,278.05
  6. Step 6: Final answer
    x = 1,135,971.80

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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.