Home / 1,538,191.38-2,308,734.54-780,576.78

Finding the Fourth Proportional to 1,538,191.38, 2,308,734.54 and 780,576.78

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Solution

The fourth proportional to 1,538,191.38, 2,308,734.54 and 780,576.78 is: 1,171,599.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,191.38 : 2,308,734.54 = 780,576.78 : x
  2. Step 2: Convert to fraction form
    1,538,191.38/2,308,734.54 = 780,576.78/x
  3. Step 3: Cross multiply
    1,538,191.38x = 2,308,734.54 × 780,576.78
  4. Step 4: Simplify right side
    1,538,191.38x = 1,802,144,573,107.98
  5. Step 5: Solve for x
    x = 1,802,144,573,107.98/1,538,191.38
  6. Step 6: Final answer
    x = 1,171,599.71

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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.