Home / 1,078,516.26-1,488,891.70-670,749.43

Finding the Fourth Proportional to 1,078,516.26, 1,488,891.70 and 670,749.43

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Solution

The fourth proportional to 1,078,516.26, 1,488,891.70 and 670,749.43 is: 925,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,516.26 : 1,488,891.70 = 670,749.43 : x
  2. Step 2: Convert to fraction form
    1,078,516.26/1,488,891.70 = 670,749.43/x
  3. Step 3: Cross multiply
    1,078,516.26x = 1,488,891.70 × 670,749.43
  4. Step 4: Simplify right side
    1,078,516.26x = 998,673,259,106.73
  5. Step 5: Solve for x
    x = 998,673,259,106.73/1,078,516.26
  6. Step 6: Final answer
    x = 925,969.59

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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.