Home / 1,819,490.31-2,729,198.21-808,338.15

Finding the Fourth Proportional to 1,819,490.31, 2,729,198.21 and 808,338.15

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Solution

The fourth proportional to 1,819,490.31, 2,729,198.21 and 808,338.15 is: 1,212,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,490.31 : 2,729,198.21 = 808,338.15 : x
  2. Step 2: Convert to fraction form
    1,819,490.31/2,729,198.21 = 808,338.15/x
  3. Step 3: Cross multiply
    1,819,490.31x = 2,729,198.21 × 808,338.15
  4. Step 4: Simplify right side
    1,819,490.31x = 2,206,115,028,013.02
  5. Step 5: Solve for x
    x = 2,206,115,028,013.02/1,819,490.31
  6. Step 6: Final answer
    x = 1,212,490.67

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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.