Home / 1,190,820.28-1,786,288.78-480,759.72

Finding the Fourth Proportional to 1,190,820.28, 1,786,288.78 and 480,759.72

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Solution

The fourth proportional to 1,190,820.28, 1,786,288.78 and 480,759.72 is: 721,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,820.28 : 1,786,288.78 = 480,759.72 : x
  2. Step 2: Convert to fraction form
    1,190,820.28/1,786,288.78 = 480,759.72/x
  3. Step 3: Cross multiply
    1,190,820.28x = 1,786,288.78 × 480,759.72
  4. Step 4: Simplify right side
    1,190,820.28x = 858,775,693,711.94
  5. Step 5: Solve for x
    x = 858,775,693,711.94/1,190,820.28
  6. Step 6: Final answer
    x = 721,163.14

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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.