Home / 1,189,750.32-1,780,860.60-762,715.44

Finding the Fourth Proportional to 1,189,750.32, 1,780,860.60 and 762,715.44

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Solution

The fourth proportional to 1,189,750.32, 1,780,860.60 and 762,715.44 is: 1,141,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,750.32 : 1,780,860.60 = 762,715.44 : x
  2. Step 2: Convert to fraction form
    1,189,750.32/1,780,860.60 = 762,715.44/x
  3. Step 3: Cross multiply
    1,189,750.32x = 1,780,860.60 × 762,715.44
  4. Step 4: Simplify right side
    1,189,750.32x = 1,358,289,876,107.66
  5. Step 5: Solve for x
    x = 1,358,289,876,107.66/1,189,750.32
  6. Step 6: Final answer
    x = 1,141,659.60

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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.