Home / 1,659,665.40-2,485,998.90-1,379,729.40

Finding the Fourth Proportional to 1,659,665.40, 2,485,998.90 and 1,379,729.40

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Solution

The fourth proportional to 1,659,665.40, 2,485,998.90 and 1,379,729.40 is: 2,066,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,665.40 : 2,485,998.90 = 1,379,729.40 : x
  2. Step 2: Convert to fraction form
    1,659,665.40/2,485,998.90 = 1,379,729.40/x
  3. Step 3: Cross multiply
    1,659,665.40x = 2,485,998.90 × 1,379,729.40
  4. Step 4: Simplify right side
    1,659,665.40x = 3,430,005,770,697.66
  5. Step 5: Solve for x
    x = 3,430,005,770,697.66/1,659,665.40
  6. Step 6: Final answer
    x = 2,066,685.11

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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.