Home / 1,115,521.39-1,538,984.89-825,826.36

Finding the Fourth Proportional to 1,115,521.39, 1,538,984.89 and 825,826.36

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Solution

The fourth proportional to 1,115,521.39, 1,538,984.89 and 825,826.36 is: 1,139,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,521.39 : 1,538,984.89 = 825,826.36 : x
  2. Step 2: Convert to fraction form
    1,115,521.39/1,538,984.89 = 825,826.36/x
  3. Step 3: Cross multiply
    1,115,521.39x = 1,538,984.89 × 825,826.36
  4. Step 4: Simplify right side
    1,115,521.39x = 1,270,934,286,914.09
  5. Step 5: Solve for x
    x = 1,270,934,286,914.09/1,115,521.39
  6. Step 6: Final answer
    x = 1,139,318.62

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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.