Home / 2,185,847.79-3,278,990.40-669,513.21

Finding the Fourth Proportional to 2,185,847.79, 3,278,990.40 and 669,513.21

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Solution

The fourth proportional to 2,185,847.79, 3,278,990.40 and 669,513.21 is: 1,004,336.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,847.79 : 3,278,990.40 = 669,513.21 : x
  2. Step 2: Convert to fraction form
    2,185,847.79/3,278,990.40 = 669,513.21/x
  3. Step 3: Cross multiply
    2,185,847.79x = 3,278,990.40 × 669,513.21
  4. Step 4: Simplify right side
    2,185,847.79x = 2,195,327,388,263.18
  5. Step 5: Solve for x
    x = 2,195,327,388,263.18/2,185,847.79
  6. Step 6: Final answer
    x = 1,004,336.81

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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.