Home / 2,309,033.65-3,186,564.85-1,290,438.37

Finding the Fourth Proportional to 2,309,033.65, 3,186,564.85 and 1,290,438.37

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Solution

The fourth proportional to 2,309,033.65, 3,186,564.85 and 1,290,438.37 is: 1,780,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309,033.65 : 3,186,564.85 = 1,290,438.37 : x
  2. Step 2: Convert to fraction form
    2,309,033.65/3,186,564.85 = 1,290,438.37/x
  3. Step 3: Cross multiply
    2,309,033.65x = 3,186,564.85 × 1,290,438.37
  4. Step 4: Simplify right side
    2,309,033.65x = 4,112,065,544,481.10
  5. Step 5: Solve for x
    x = 4,112,065,544,481.10/2,309,033.65
  6. Step 6: Final answer
    x = 1,780,859.95

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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.