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Finding the Fourth Proportional to 2,664,000.40, 3,996,000.60 and 1,813,694.80

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Solution

The fourth proportional to 2,664,000.40, 3,996,000.60 and 1,813,694.80 is: 2,720,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,000.40 : 3,996,000.60 = 1,813,694.80 : x
  2. Step 2: Convert to fraction form
    2,664,000.40/3,996,000.60 = 1,813,694.80/x
  3. Step 3: Cross multiply
    2,664,000.40x = 3,996,000.60 × 1,813,694.80
  4. Step 4: Simplify right side
    2,664,000.40x = 7,247,525,509,016.88
  5. Step 5: Solve for x
    x = 7,247,525,509,016.88/2,664,000.40
  6. Step 6: Final answer
    x = 2,720,542.20

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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.