Home / 2,078,711.80-3,116,318.10-1,081,439.80

Finding the Fourth Proportional to 2,078,711.80, 3,116,318.10 and 1,081,439.80

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Solution

The fourth proportional to 2,078,711.80, 3,116,318.10 and 1,081,439.80 is: 1,621,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,711.80 : 3,116,318.10 = 1,081,439.80 : x
  2. Step 2: Convert to fraction form
    2,078,711.80/3,116,318.10 = 1,081,439.80/x
  3. Step 3: Cross multiply
    2,078,711.80x = 3,116,318.10 × 1,081,439.80
  4. Step 4: Simplify right side
    2,078,711.80x = 3,370,110,422,800.38
  5. Step 5: Solve for x
    x = 3,370,110,422,800.38/2,078,711.80
  6. Step 6: Final answer
    x = 1,621,249.48

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1.5x scale

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.