Home / 1,260,591.75-1,890,904.10-419,143.50

Finding the Fourth Proportional to 1,260,591.75, 1,890,904.10 and 419,143.50

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Solution

The fourth proportional to 1,260,591.75, 1,890,904.10 and 419,143.50 is: 628,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,591.75 : 1,890,904.10 = 419,143.50 : x
  2. Step 2: Convert to fraction form
    1,260,591.75/1,890,904.10 = 419,143.50/x
  3. Step 3: Cross multiply
    1,260,591.75x = 1,890,904.10 × 419,143.50
  4. Step 4: Simplify right side
    1,260,591.75x = 792,560,160,542.63
  5. Step 5: Solve for x
    x = 792,560,160,542.63/1,260,591.75
  6. Step 6: Final answer
    x = 628,720.73

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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.