Home / 2,680,356.40-4,025,200.20-1,420,644.40

Finding the Fourth Proportional to 2,680,356.40, 4,025,200.20 and 1,420,644.40

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Solution

The fourth proportional to 2,680,356.40, 4,025,200.20 and 1,420,644.40 is: 2,133,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,356.40 : 4,025,200.20 = 1,420,644.40 : x
  2. Step 2: Convert to fraction form
    2,680,356.40/4,025,200.20 = 1,420,644.40/x
  3. Step 3: Cross multiply
    2,680,356.40x = 4,025,200.20 × 1,420,644.40
  4. Step 4: Simplify right side
    2,680,356.40x = 5,718,378,123,008.88
  5. Step 5: Solve for x
    x = 5,718,378,123,008.88/2,680,356.40
  6. Step 6: Final answer
    x = 2,133,439.46

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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.