Home / 3,208,121.28-4,812,181.92-1,078,205.40

Finding the Fourth Proportional to 3,208,121.28, 4,812,181.92 and 1,078,205.40

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Solution

The fourth proportional to 3,208,121.28, 4,812,181.92 and 1,078,205.40 is: 1,617,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,121.28 : 4,812,181.92 = 1,078,205.40 : x
  2. Step 2: Convert to fraction form
    3,208,121.28/4,812,181.92 = 1,078,205.40/x
  3. Step 3: Cross multiply
    3,208,121.28x = 4,812,181.92 × 1,078,205.40
  4. Step 4: Simplify right side
    3,208,121.28x = 5,188,520,531,926.37
  5. Step 5: Solve for x
    x = 5,188,520,531,926.37/3,208,121.28
  6. Step 6: Final answer
    x = 1,617,308.10

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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.