Home / 1,912,459.86-2,639,291.58-1,085,591.64

Finding the Fourth Proportional to 1,912,459.86, 2,639,291.58 and 1,085,591.64

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Solution

The fourth proportional to 1,912,459.86, 2,639,291.58 and 1,085,591.64 is: 1,498,171.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,459.86 : 2,639,291.58 = 1,085,591.64 : x
  2. Step 2: Convert to fraction form
    1,912,459.86/2,639,291.58 = 1,085,591.64/x
  3. Step 3: Cross multiply
    1,912,459.86x = 2,639,291.58 × 1,085,591.64
  4. Step 4: Simplify right side
    1,912,459.86x = 2,865,192,874,770.39
  5. Step 5: Solve for x
    x = 2,865,192,874,770.39/1,912,459.86
  6. Step 6: Final answer
    x = 1,498,171.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.