Home / 1,101,738.87-1,520,429.79-618,333.98

Finding the Fourth Proportional to 1,101,738.87, 1,520,429.79 and 618,333.98

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Solution

The fourth proportional to 1,101,738.87, 1,520,429.79 and 618,333.98 is: 853,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,738.87 : 1,520,429.79 = 618,333.98 : x
  2. Step 2: Convert to fraction form
    1,101,738.87/1,520,429.79 = 618,333.98/x
  3. Step 3: Cross multiply
    1,101,738.87x = 1,520,429.79 × 618,333.98
  4. Step 4: Simplify right side
    1,101,738.87x = 940,133,395,759.12
  5. Step 5: Solve for x
    x = 940,133,395,759.12/1,101,738.87
  6. Step 6: Final answer
    x = 853,317.81

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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.