Home / 2,078,618.70-3,117,928.05-1,277,301.90

Finding the Fourth Proportional to 2,078,618.70, 3,117,928.05 and 1,277,301.90

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Solution

The fourth proportional to 2,078,618.70, 3,117,928.05 and 1,277,301.90 is: 1,915,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,618.70 : 3,117,928.05 = 1,277,301.90 : x
  2. Step 2: Convert to fraction form
    2,078,618.70/3,117,928.05 = 1,277,301.90/x
  3. Step 3: Cross multiply
    2,078,618.70x = 3,117,928.05 × 1,277,301.90
  4. Step 4: Simplify right side
    2,078,618.70x = 3,982,535,422,328.29
  5. Step 5: Solve for x
    x = 3,982,535,422,328.29/2,078,618.70
  6. Step 6: Final answer
    x = 1,915,952.85

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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.