Home / 1,889,666.70-2,827,588.05-1,392,002.70

Finding the Fourth Proportional to 1,889,666.70, 2,827,588.05 and 1,392,002.70

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Solution

The fourth proportional to 1,889,666.70, 2,827,588.05 and 1,392,002.70 is: 2,082,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,666.70 : 2,827,588.05 = 1,392,002.70 : x
  2. Step 2: Convert to fraction form
    1,889,666.70/2,827,588.05 = 1,392,002.70/x
  3. Step 3: Cross multiply
    1,889,666.70x = 2,827,588.05 × 1,392,002.70
  4. Step 4: Simplify right side
    1,889,666.70x = 3,936,010,200,087.73
  5. Step 5: Solve for x
    x = 3,936,010,200,087.73/1,889,666.70
  6. Step 6: Final answer
    x = 2,082,912.40

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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.