Home / 1,821,505.20-2,732,257.80-1,289,626.80

Finding the Fourth Proportional to 1,821,505.20, 2,732,257.80 and 1,289,626.80

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Solution

The fourth proportional to 1,821,505.20, 2,732,257.80 and 1,289,626.80 is: 1,934,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,505.20 : 2,732,257.80 = 1,289,626.80 : x
  2. Step 2: Convert to fraction form
    1,821,505.20/2,732,257.80 = 1,289,626.80/x
  3. Step 3: Cross multiply
    1,821,505.20x = 2,732,257.80 × 1,289,626.80
  4. Step 4: Simplify right side
    1,821,505.20x = 3,523,592,883,389.04
  5. Step 5: Solve for x
    x = 3,523,592,883,389.04/1,821,505.20
  6. Step 6: Final answer
    x = 1,934,440.20

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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.