Home / 1,993,729.60-2,992,156.89-1,390,768.84

Finding the Fourth Proportional to 1,993,729.60, 2,992,156.89 and 1,390,768.84

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Solution

The fourth proportional to 1,993,729.60, 2,992,156.89 and 1,390,768.84 is: 2,087,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,729.60 : 2,992,156.89 = 1,390,768.84 : x
  2. Step 2: Convert to fraction form
    1,993,729.60/2,992,156.89 = 1,390,768.84/x
  3. Step 3: Cross multiply
    1,993,729.60x = 2,992,156.89 × 1,390,768.84
  4. Step 4: Simplify right side
    1,993,729.60x = 4,161,398,567,003.31
  5. Step 5: Solve for x
    x = 4,161,398,567,003.31/1,993,729.60
  6. Step 6: Final answer
    x = 2,087,243.21

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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.