Home / 2,190,000.72-3,290,833.12-1,179,898.32

Finding the Fourth Proportional to 2,190,000.72, 3,290,833.12 and 1,179,898.32

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Solution

The fourth proportional to 2,190,000.72, 3,290,833.12 and 1,179,898.32 is: 1,772,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,000.72 : 3,290,833.12 = 1,179,898.32 : x
  2. Step 2: Convert to fraction form
    2,190,000.72/3,290,833.12 = 1,179,898.32/x
  3. Step 3: Cross multiply
    2,190,000.72x = 3,290,833.12 × 1,179,898.32
  4. Step 4: Simplify right side
    2,190,000.72x = 3,882,848,469,688.36
  5. Step 5: Solve for x
    x = 3,882,848,469,688.36/2,190,000.72
  6. Step 6: Final answer
    x = 1,772,989.59

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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.