Home / 2,788,809.20-4,183,213.80-2,620,847.60

Finding the Fourth Proportional to 2,788,809.20, 4,183,213.80 and 2,620,847.60

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Solution

The fourth proportional to 2,788,809.20, 4,183,213.80 and 2,620,847.60 is: 3,931,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,809.20 : 4,183,213.80 = 2,620,847.60 : x
  2. Step 2: Convert to fraction form
    2,788,809.20/4,183,213.80 = 2,620,847.60/x
  3. Step 3: Cross multiply
    2,788,809.20x = 4,183,213.80 × 2,620,847.60
  4. Step 4: Simplify right side
    2,788,809.20x = 10,963,565,848,016.88
  5. Step 5: Solve for x
    x = 10,963,565,848,016.88/2,788,809.20
  6. Step 6: Final answer
    x = 3,931,271.40

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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.