Home / 3,280,934.40-4,921,401.60-3,214,579.20

Finding the Fourth Proportional to 3,280,934.40, 4,921,401.60 and 3,214,579.20

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Solution

The fourth proportional to 3,280,934.40, 4,921,401.60 and 3,214,579.20 is: 4,821,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,934.40 : 4,921,401.60 = 3,214,579.20 : x
  2. Step 2: Convert to fraction form
    3,280,934.40/4,921,401.60 = 3,214,579.20/x
  3. Step 3: Cross multiply
    3,280,934.40x = 4,921,401.60 × 3,214,579.20
  4. Step 4: Simplify right side
    3,280,934.40x = 15,820,235,218,206.72
  5. Step 5: Solve for x
    x = 15,820,235,218,206.72/3,280,934.40
  6. Step 6: Final answer
    x = 4,821,868.80

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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.