Home / 1,208,127.70-1,811,059.80-408,849.70

Finding the Fourth Proportional to 1,208,127.70, 1,811,059.80 and 408,849.70

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Solution

The fourth proportional to 1,208,127.70, 1,811,059.80 and 408,849.70 is: 612,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,127.70 : 1,811,059.80 = 408,849.70 : x
  2. Step 2: Convert to fraction form
    1,208,127.70/1,811,059.80 = 408,849.70/x
  3. Step 3: Cross multiply
    1,208,127.70x = 1,811,059.80 × 408,849.70
  4. Step 4: Simplify right side
    1,208,127.70x = 740,451,255,912.06
  5. Step 5: Solve for x
    x = 740,451,255,912.06/1,208,127.70
  6. Step 6: Final answer
    x = 612,891.55

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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.