Home / 1,861,277.70-2,788,964.10-1,229,453.40

Finding the Fourth Proportional to 1,861,277.70, 2,788,964.10 and 1,229,453.40

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Solution

The fourth proportional to 1,861,277.70, 2,788,964.10 and 1,229,453.40 is: 1,842,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,277.70 : 2,788,964.10 = 1,229,453.40 : x
  2. Step 2: Convert to fraction form
    1,861,277.70/2,788,964.10 = 1,229,453.40/x
  3. Step 3: Cross multiply
    1,861,277.70x = 2,788,964.10 × 1,229,453.40
  4. Step 4: Simplify right side
    1,861,277.70x = 3,428,901,395,222.94
  5. Step 5: Solve for x
    x = 3,428,901,395,222.94/1,861,277.70
  6. Step 6: Final answer
    x = 1,842,229.88

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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.