Home / 1,286,517.40-1,930,697.70-539,099.80

Finding the Fourth Proportional to 1,286,517.40, 1,930,697.70 and 539,099.80

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Solution

The fourth proportional to 1,286,517.40, 1,930,697.70 and 539,099.80 is: 809,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,517.40 : 1,930,697.70 = 539,099.80 : x
  2. Step 2: Convert to fraction form
    1,286,517.40/1,930,697.70 = 539,099.80/x
  3. Step 3: Cross multiply
    1,286,517.40x = 1,930,697.70 × 539,099.80
  4. Step 4: Simplify right side
    1,286,517.40x = 1,040,838,743,930.46
  5. Step 5: Solve for x
    x = 1,040,838,743,930.46/1,286,517.40
  6. Step 6: Final answer
    x = 809,035.89

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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.