Home / 2,989,969.20-4,484,797.07-859,969.71

Finding the Fourth Proportional to 2,989,969.20, 4,484,797.07 and 859,969.71

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Solution

The fourth proportional to 2,989,969.20, 4,484,797.07 and 859,969.71 is: 1,289,909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,969.20 : 4,484,797.07 = 859,969.71 : x
  2. Step 2: Convert to fraction form
    2,989,969.20/4,484,797.07 = 859,969.71/x
  3. Step 3: Cross multiply
    2,989,969.20x = 4,484,797.07 × 859,969.71
  4. Step 4: Simplify right side
    2,989,969.20x = 3,856,789,631,396.90
  5. Step 5: Solve for x
    x = 3,856,789,631,396.90/2,989,969.20
  6. Step 6: Final answer
    x = 1,289,909.49

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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.