Home / 1,420,940.16-1,960,896.24-809,061.84

Finding the Fourth Proportional to 1,420,940.16, 1,960,896.24 and 809,061.84

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Solution

The fourth proportional to 1,420,940.16, 1,960,896.24 and 809,061.84 is: 1,116,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,940.16 : 1,960,896.24 = 809,061.84 : x
  2. Step 2: Convert to fraction form
    1,420,940.16/1,960,896.24 = 809,061.84/x
  3. Step 3: Cross multiply
    1,420,940.16x = 1,960,896.24 × 809,061.84
  4. Step 4: Simplify right side
    1,420,940.16x = 1,586,486,319,983.48
  5. Step 5: Solve for x
    x = 1,586,486,319,983.48/1,420,940.16
  6. Step 6: Final answer
    x = 1,116,504.67

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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.