Home / 829,789.88-1,245,735.39-509,154.08

Finding the Fourth Proportional to 829,789.88, 1,245,735.39 and 509,154.08

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Solution

The fourth proportional to 829,789.88, 1,245,735.39 and 509,154.08 is: 764,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,789.88 : 1,245,735.39 = 509,154.08 : x
  2. Step 2: Convert to fraction form
    829,789.88/1,245,735.39 = 509,154.08/x
  3. Step 3: Cross multiply
    829,789.88x = 1,245,735.39 × 509,154.08
  4. Step 4: Simplify right side
    829,789.88x = 634,271,250,190.21
  5. Step 5: Solve for x
    x = 634,271,250,190.21/829,789.88
  6. Step 6: Final answer
    x = 764,375.74

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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.