Home / 2,578,850.80-3,868,276.20-685,783.60

Finding the Fourth Proportional to 2,578,850.80, 3,868,276.20 and 685,783.60

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Solution

The fourth proportional to 2,578,850.80, 3,868,276.20 and 685,783.60 is: 1,028,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,850.80 : 3,868,276.20 = 685,783.60 : x
  2. Step 2: Convert to fraction form
    2,578,850.80/3,868,276.20 = 685,783.60/x
  3. Step 3: Cross multiply
    2,578,850.80x = 3,868,276.20 × 685,783.60
  4. Step 4: Simplify right side
    2,578,850.80x = 2,652,800,378,230.32
  5. Step 5: Solve for x
    x = 2,652,800,378,230.32/2,578,850.80
  6. Step 6: Final answer
    x = 1,028,675.40

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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.