Home / 2,840,423.80-4,260,635.70-2,205,902.20

Finding the Fourth Proportional to 2,840,423.80, 4,260,635.70 and 2,205,902.20

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Solution

The fourth proportional to 2,840,423.80, 4,260,635.70 and 2,205,902.20 is: 3,308,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840,423.80 : 4,260,635.70 = 2,205,902.20 : x
  2. Step 2: Convert to fraction form
    2,840,423.80/4,260,635.70 = 2,205,902.20/x
  3. Step 3: Cross multiply
    2,840,423.80x = 4,260,635.70 × 2,205,902.20
  4. Step 4: Simplify right side
    2,840,423.80x = 9,398,545,664,028.54
  5. Step 5: Solve for x
    x = 9,398,545,664,028.54/2,840,423.80
  6. Step 6: Final answer
    x = 3,308,853.30

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Double scale
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Similar ratio
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1.5x scale

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.