Home / 1,218,945.97-1,682,425.38-811,064.94

Finding the Fourth Proportional to 1,218,945.97, 1,682,425.38 and 811,064.94

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Solution

The fourth proportional to 1,218,945.97, 1,682,425.38 and 811,064.94 is: 1,119,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,945.97 : 1,682,425.38 = 811,064.94 : x
  2. Step 2: Convert to fraction form
    1,218,945.97/1,682,425.38 = 811,064.94/x
  3. Step 3: Cross multiply
    1,218,945.97x = 1,682,425.38 × 811,064.94
  4. Step 4: Simplify right side
    1,218,945.97x = 1,364,556,239,884.18
  5. Step 5: Solve for x
    x = 1,364,556,239,884.18/1,218,945.97
  6. Step 6: Final answer
    x = 1,119,455.89

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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.