Home / 3,208,129.28-4,812,193.92-1,078,213.40

Finding the Fourth Proportional to 3,208,129.28, 4,812,193.92 and 1,078,213.40

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Solution

The fourth proportional to 3,208,129.28, 4,812,193.92 and 1,078,213.40 is: 1,617,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,129.28 : 4,812,193.92 = 1,078,213.40 : x
  2. Step 2: Convert to fraction form
    3,208,129.28/4,812,193.92 = 1,078,213.40/x
  3. Step 3: Cross multiply
    3,208,129.28x = 4,812,193.92 × 1,078,213.40
  4. Step 4: Simplify right side
    3,208,129.28x = 5,188,571,967,942.53
  5. Step 5: Solve for x
    x = 5,188,571,967,942.53/3,208,129.28
  6. Step 6: Final answer
    x = 1,617,320.10

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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.