Home / 1,299,625.54-1,949,438.31-856,289.86

Finding the Fourth Proportional to 1,299,625.54, 1,949,438.31 and 856,289.86

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Solution

The fourth proportional to 1,299,625.54, 1,949,438.31 and 856,289.86 is: 1,284,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,625.54 : 1,949,438.31 = 856,289.86 : x
  2. Step 2: Convert to fraction form
    1,299,625.54/1,949,438.31 = 856,289.86/x
  3. Step 3: Cross multiply
    1,299,625.54x = 1,949,438.31 × 856,289.86
  4. Step 4: Simplify right side
    1,299,625.54x = 1,669,284,257,548.54
  5. Step 5: Solve for x
    x = 1,669,284,257,548.54/1,299,625.54
  6. Step 6: Final answer
    x = 1,284,434.79

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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.