Home / 1,419,727.80-2,128,977.30-577,999.80

Finding the Fourth Proportional to 1,419,727.80, 2,128,977.30 and 577,999.80

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Solution

The fourth proportional to 1,419,727.80, 2,128,977.30 and 577,999.80 is: 866,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,727.80 : 2,128,977.30 = 577,999.80 : x
  2. Step 2: Convert to fraction form
    1,419,727.80/2,128,977.30 = 577,999.80/x
  3. Step 3: Cross multiply
    1,419,727.80x = 2,128,977.30 × 577,999.80
  4. Step 4: Simplify right side
    1,419,727.80x = 1,230,548,453,604.54
  5. Step 5: Solve for x
    x = 1,230,548,453,604.54/1,419,727.80
  6. Step 6: Final answer
    x = 866,749.57

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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.