Home / 2,751,980.40-4,124,471.40-1,328,972.40

Finding the Fourth Proportional to 2,751,980.40, 4,124,471.40 and 1,328,972.40

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Solution

The fourth proportional to 2,751,980.40, 4,124,471.40 and 1,328,972.40 is: 1,991,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751,980.40 : 4,124,471.40 = 1,328,972.40 : x
  2. Step 2: Convert to fraction form
    2,751,980.40/4,124,471.40 = 1,328,972.40/x
  3. Step 3: Cross multiply
    2,751,980.40x = 4,124,471.40 × 1,328,972.40
  4. Step 4: Simplify right side
    2,751,980.40x = 5,481,308,655,189.36
  5. Step 5: Solve for x
    x = 5,481,308,655,189.36/2,751,980.40
  6. Step 6: Final answer
    x = 1,991,768.78

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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.